Adele

Adele

GRADE 12 MATHEMATICS
PAPER 1 
NSC PAST PAPERS AND MEMOS
SEPTEMBER 2017

INSTRUCTIONS AND INFORMATION 
Read the following instructions carefully before answering the questions.

  1. This question paper consists of ELEVEN questions. Answer ALL the questions.
  2. Clearly show ALL calculations, diagrams, graphs, et cetera that you have used in  determining your answer. 
  3. You may use an approved scientific calculator (non-programmable and non graphical), unless stated otherwise. 
  4. Answers only will not necessarily be awarded full marks.
  5. If necessary, round off answers to TWO decimal places, unless stated otherwise.
  6. Diagrams are NOT necessarily drawn to scale.
  7. Number the answers correctly according to the numbering system used in this  question paper. 
  8. Write neatly and legibly.
  9. An information sheet with formulae is included at the end of the question paper.

QUESTIONS

QUESTION 1 
Solve for x: 
1.1 2x(x+ 1) − 7(x + 1) = 0 (3)
1.2 x2 − 5x − 1 = 0 , correct to two decimal places. (3)
1.3 4x2 + 1 ≥ 5x (4)
1.4 54x+3. 100−2x+1 = 50 000 (4)
1.5 Solve for x and y simultaneously. 
x = 2y and x2 + 2x − y − y2 = 36 (5) 
1.6 Show that the roots of x2 − kx + k − 1 = 0 are real and rational for all real  values of k. (4)

[23] 

QUESTION 2 
2.1 Given the following linear series: 3 + 7 + 11 + … … … + 483

2.1.1 How many terms does the above series have? (3)
2.1.2 Write the above series in sigma notation. (2) 

2.2 2t − 4 ; t − 3 ; 8 − 2t are the 10th , 11th and 12th terms of an arithmetic  sequence. 

2.2.1 Determine the value of t . (3)
2.2.2 Calculate the value of the first term. (3) 

2.3 The following information of a geometric pattern is given:  

T1 + T2 = −1 and T3 + T4 = −4 
Determine the numerical values of the first three terms if r > 0. (6)

[17]

QUESTION 3 
Given the following list of numbers in a quadratic sequence:  
41 ; 43 ; 47 ; 53 ; 61 ; 71 ; 83 ; 97 ; 113 ; 131 
3.1 Determine the general term of the above sequence if it has a constant second  difference. (5) 
3.2 Calculate T41 and show that it is not a prime number. (3) 
3.3 Determine the unit digit of the 49 999 998th term of the above sequence. (3)

[11] 

QUESTION 4 

4.1 Wayde invest R500 000 at 7,2% per annum compounded monthly. 

4.1.1 Write down an expression for the value of his investment after n full  years. (2) 
4.1.2 Determine the value of his investment after 5 full years. (2) 
4.1.3 If the investment exceeds R1 million rand after nfull years, calculate  the value of n . (3) 

4.2 Mr Jones wants to purchase a new car. The car cost R350 000 and he wants to  pay R10 000 per month for three years. The interest rate on a financed loan,  payable monthly, is 15% p.a. compounded monthly. 

4.2.1 Calculate how much he will have to give as a deposit, to the auto dealer. (5) 
4.2.2 Calculate his monthly payment if he pays no deposit and the car is  financed over 5 years, at an interest rate of 18,5% p.a. compounded  monthly. (4)

[16]

QUESTION 5 
The sketch shows the graph of f(x) = x(x + 3) and g(x) = −½x + 2. 
q5
5.1 Determine the coordinates of A. (1)
5.2 Calculate the coordinates of P, the turning point of f . (3)
5.3 Determine the average gradient of f between x = −5 and x = −3 . (3)
5.4 Determine the value(s) of x for which f(x) > 0. (2)
5.5 Determine the coordinates of the turning point of ℎ if ℎ(x) = f(x − 2). (2) 
5.6 L is a point on the straight line and M is a point on the parabola. LM is  perpendicular to the x-axis. Show that the length LM can be written as:  
LM =  - [x + 7/4]  + 81/16    (4)

[15] 

QUESTION 6 
Given: ℎ(x) = 2−x 

6.1 Draw a neat sketch of ℎ . (3) 
6.2 Determine the equation of q, the graph obtained by reflecting ℎ in the line  y = 0 . (1) 
6.3 Write down the equation of ℎ−1, the inverse of ℎ, in the form y = … (2)
6.4 Write down the range of ℎ . (1)
6.5 Sketch the graph of ℎ−1 on the same set of axes as ℎ . (2) 
6.6 Determine the x-value(s) for which ℎ−1(x) ≥ −3 . (2)

[11] 

QUESTION 7 
A sketch of the hyperbola f(x ) =  d - f
                                                     x - p ,  where p and d are constants, is given below.  
The dotted lines are the asymptotes. The point A(5; 0) is given on the graph of f.  
q7
7.1 Determine the values of d and p . (2)
7.2 Show that the equation can be written as  y =         3        - 1
                                                                                  x - 2                               (2)
7.3 Write down the image of A if A is reflected about the axis of symmetry  y = x − 3. (2)

[6] 

QUESTION 8 
8.1 Given: f(x) = −2x2 + p
Determine f′(x) from first principles. (5) 
8.2 Determine: q8   (4)

[9] 

QUESTION 9 
Given: f(x) = (x − 1)2(x + 3) 
9.1 Determine the turning points of f. (5) 
9.2 Draw a neat sketch of f showing all intercepts with the axes as well as the  turning points. (4) 
9.3 Determine the coordinates of the point where the concavity of f changes. (3)
9.4 Determine the value(s) of k, for which f(x) = k has three distinct roots. (2) 
9.5 Determine the equation of the tangent to f that is parallel to the line y = −5x if x < 0 . (6)

[20] 

QUESTION 10 
A closed rectangular box, with a rectangle as base, has a length (2x) cm and width  (x) cm. The total surface area (all 6 sides) is 243 cm2. 
10.1 Show that the height, ℎ , is equal to [ 81 - 2x] cm
                                                                 [ 2x    3 ]
10.2 Show that the volume of the box, in terms of x , is given by the formula: 
V = 81x − 4/3x3     (2) 
10.3 Calculate the value of x if the volume of the box is a maximum. (3) 

[7]

QUESTION 11 
11.1 You have to select a new password for your “Dropbox” account on your  computer. The password must consist of 3 digits and 2 letters of the alphabet in  that order. The digit 0(zero) is not allowed and no consonants are allowed. Any  digit may be repeated but the vowels may not be repeated. How many different  passwords are possible? (3) 
11.2 Using the letters in the word FUNDAMENTALS , determine: 

11.2.1 The number of unique 12 letter arrangements that can be formed (3) 
11.2.2 The probability that a new arrangement will start and end with the  letter N (3) 
11.3 In a city where the ratio of male to female is 1 : 2, one person is selected to flip a fair coin for the kick-off of a soccer tournament. 
11.3.1 Draw a tree diagram to show all possible outcomes of the coin toss. (3) 11.3.2 Determine the probability that it will be a woman who flips the coin. (1) 
11.3.3 Determine the probability that it will be a man who flips a head. (2)

[15] 
TOTAL: 150

info sheet

PHYSICAL SCIENCES: CHEMISTRY
PAPER 2
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

MEMORANDUM 

QUESTION 1
1.1 B ✔✔ (2)
1.2 B ✔✔ (2)
1.3 A ✔✔ (2)
1.4 A ✔✔ (2)
1.5 C ✔✔ (2)
1.6 D ✔✔ (2)
1.7 C ✔✔ (2)
1.8 B ✔✔ (2)
1.9 C ✔✔ (2) 
1.10 A ✔✔ (2)

[20] 

QUESTION 2
2.1 

2.1.1 B ✔ (1)
2.1.2 D OR/OF E ✔ (1)
2.1.3 F ✔ (1) 

2.2 

2.2.1 Butanal ✔ (1) 
2.2.2 2,3,3-trimethyl✔but-1-ene ✔ 
Accept
2,3,3- trimethyl ✔-1- butene

Marking criteria:

  • Correct stem i.e. but-1-ene / 1-butene. ✔
  • Substituents correctly identified. ✔
  • Substituents correctly numbered, hyphens and commas correctly used. ✔

hoho(3) 

Marking criteria: 

  • Whole structure correct:
  • Only functional group correct:
    Max 21

(2) 
2.4 

2.4.1 Esterification / Condensation ✔   (1) 
2.4.2 Propan-1-ol ✔ ✔ 
If propanol (1 mark)  (2) 
2.4.3  hoho2

Marking criteria:

  • Whole structure correct:2/2
  • Only functional group correct
    Max/1/2

(2) 

2.4.4 Propyl ✔ butanoate ✔(2)

[16] 

QUESTION 3
3.1

  • The temperature at which the vapour pressure equals atmospheric (external)  pressure. ✔✔ (2 or 0)  (2) 

3.2

  • Flammable / Catch fire easily. / Volatile ✔ (1) 

3.3 
3.3.1

  • Use straight chain✔ primary alcohols ✔ (2) 

3.3.2. OPTION 1

  • Structure
    Chain length / more C atoms in chain / molecular size / molecular mass / surface area increases from top to bottom / butan-1-ol to hexan-1-ol.✔
  • Intermolecular forces
    Intermolecular forces / Van der Waals forces / London forces / dispersion  forces increases from top to bottom / butan-1-ol to hexan-1-ol. ✔
  • Energy
    Energy needed to overcome / break intermolecular forces increases from  top to bottom / butan-1-ol to hexan-1-ol. ✔

OPTION 2

  • Structure
    Chain length / number of C atoms in the chain / molecular size / molecular  mass/surface area decreases from bottom to top / hexan-1-ol to  butan-1-ol. ✔
  • Intermolecular forces
    Intermolecular forces / Van der Waals forces/London forces / dispersion  forces decreases from bottom to top/hexan-1-ol to butan-1-ol. ✔
  • Energy
    Energy needed to overcome / break intermolecular forces decreases from  bottom to top / hexan-1-ol to butan-1-ol. ✔  (3) 

3.4 Remains the same / Bly dieselfde ✔ (1) 
3.5 

3.5.1 Functional group / Type of homologous series ✔ (1) 
3.5.2

  • Type of intermolecular forces
    Between molecules of aldehyde / hexanal are dipole-dipole forces. ✔
  • Between molecules of alcohols / hexan-1ol are (in addition to dipole-dipole  forces and London forces) hydrogen bonds. ✔
  • Strength of intermolecular forces
    Dipole-dipole forces are weaker than hydrogen bonds. ✔
    OR
    Hydrogen bonds are stronger than dipole-dipole forces.
  • Energy
    More energy needed to overcome / break intermolecular forces in  hexan-1-ol. ✔
    OR
    Less energy needed to overcome / break intermolecular forces in  hexanal.✔  (4)

[14]

QUESTION 4
4.1 

4.1.1 Substitution / hydrolysis ✔ (1)
4.1.2 H2O/water ✔
OR
Dilute sodium hydroxide /NaOH(aq) 
OR
Dilute potassium hydroxide/KOH(aq)(1)
4.1.3 Tertiary ✔ (1) 
4.1.4 Elimination / dehydrohalogenation / dehydrobromination ✔ (1) ✔✔
4.1.5 2-methylprop-1-ene / methylpropene / 2-methylpropene  (2) 
4.1.6 Halogenation / bromination ✔ (1) 
4.1.7   hoho3(4) 

  • Whole structure correct. ✔✔
  • Only functional group correct. ✔

Notes: 

  • Ignore ⇌
  • Accept Br2 if condensed.
  • Marking rule 3.9
  • Condensed or semi-structural formula: Max. 3/4
  • Molecular formula 1/4
  • Any additional reactants or products: Max. 3/4
  • Everything correct, arrow in equation omitted: Max. 3/4 

4.2 

4.2.1 Monomers  ✔ (1)
4.2.2 Alkenes ✔ (1) 
4.2.3 Addition (polymerisation) ✔ (1)

[14] 

QUESTION 5/VRAAG 5 
5.1 ANY TWO:

  • Increase temperature of HCℓ. ✔
  • Add a catalyst ✔
  • Increase the concentration of HCℓ. ✔
  • Increase the state of division of CuCO
  • Agitation / Stirring  ✔ (2)

5.2 Accepted range : 42 s to 50 s ✔ (1) 
5.3 
5.3.

  • average = - Δ m
                        Δ t
    = - (169,76 - 170,000)✔
                 (20 - 0) ✔
    = 0,012(g.s-1)✔

If answer is negative (minus 1 mark)  (3) 
5.3.2 Pure sample:
m(CO2)formed = 170,00 – 169,73 ✔
 = 0,27 g  
Impure sample:
m(CO2)formed = 170,00 - 169,78 ✔
 = 0,22 g  
%Purity = 0,22 × 100  ✔
                0,27 
= 81,48% ✔ (4) 

5.3.3 POSITIVE MARKING FROM QUESTION 5.3.2. 

  • n(CO2) formed  =
                                M
    = 0,27
        44
    = 6,13   ×  10-3 mol
    n(CO2) formed  = V 
                                VM
    6,13 × 10-3 =      V  
                            22,4
    V = 0,137 dm3    (3) 

5.4 POSITIVE MARKING FROM QUESTION 5.2. 
GRAPH 22

Marking criteria for sketch graph:   

Graph drawn from origin with  decreasing gradient. 

Constant volume after (42 -50) s.or graph stops at (42 -50) s 

If no labels on axes: minus 1.

 

(2) 

[15] 

QUESTION 6
6.1 Amount / number of moles / volume of (gas) reactants equals amount/number  of moles/volume of (gas) products. ✔
OR
A change in pressure will change the concentration of the reactants and  products equally. (1) 
6.2 

CALCULATIONS USING NUMBER OF MOLES 
Mark allocation:

  • Divide equilibrium amounts of H2 and I2 by 2 dm3. ✔
  • Correct Kc expression (formulae in square brackets). ✔
  • Substitution of equilibrium concentrations into Kc expression. ✔
  • Substitution of Kc value. ✔
  • Change in n(HI) = n(HI at equilibrium). 
  • USING ratio: H2 : I2 ; HI = 1 : 1 : 2 ✔
  • Initial n(I2) = equilibrium n(I2) + change in n(I2) ✔
  • Substitute 254 g·mol-1as molar mass for I2.✔
  • Final answer: 24,89 - 24,92 (g) ✔

OPTION 1
KC   [HI]2   
         [H2][I2]
∴55,3 =         [HI]2               
             (0,014)(0,0085)
∴[HI] = 0,08112 mol.dm-3

No Kc expression, correct substitution
 Max. 8/9
Wrong Kc expression
Max.6/9
 

H2 

I2 

HI

 

Initial mass (g) 

 

(0,09812)(254) ✔
= 24,92 g ✔

   

Initial quantity (mol) 

0,1091 

0,09812 

0

 

Change (mol) 

0,08112 

0,08112 ✔

0,1622 ✔

using ratio

Quantity at equilibrium (mol)/ 

0,028 

0,017 

0,1622

 

Equilibrium concentration (mol∙dm-3

0,014 

0,0085 

0,08112

×  2
  Divide by 2 ✔    

OR
KC   [HI]2   
         [H2][I2]
∴55,3 =         X2               
             (0,014)(0,0085)
∴X = 0,08112 mol.dm-3

No Kc expression, correct substitution
 Max. 8/9
Wrong Kc expression
Max.6/9
 

H2 

I2 

HI

 

Initial mass (g) 

 

 

   

Initial quantity (mol) 

x + 0,028 

x + 0,017

0

 

Change (mol) 

x

x

2x

using ratio

Quantity at equilibrium (mol)/ 

0,028 

0,017 

2x

 

Equilibrium concentration (mol∙dm-3

0,014 

0,0085 

x

×  2
  Divide by 2 ✔    

Initial quantity I2(mol) (mol) = 0,08112 + 0,017 
= 0,09812 mol 
m(I2) = nM 
 = (0,09812)(254) ✔
= 24,92 g ✔

OPTION 2

calc
n(HI at equilibrium) = (0,08112)(2) = 0,1622 mol 
n(HI formed) = n(HI at equilibrium) = 0,1622 mol
n(I2 reacted) = ½n(HI formed) = 0,08112 mol 
n(I2 initial) = n(I2 reacted) + n(I2 equilibrium)  
= 0,08112 + 0,017 
 = 0,09812 mol 
m(I2 initial) = nM 
 = (0,09812)(254) 
 = 24,92 (g)✔

CALCULATIONS USING CONCENTRATION 
Mark allocation:

  • Divide equilibrium moles of H2 and I2 by 2 dm3.
  • Correct Kc expression (formulae in square brackets).
  • Substitution of equilibrium concentrations into Kc expression.
  • Substitution of Kc value
  • Change in n(HI) = n(HI at equilibrium).
  • USING ratio: H2 : I2 : HI = 1 : 1 : 2 
  • Initial [I2] = equilibrium [I2] + change in [I2] (I2) 
  • Substitute 254 g·mol-1as molar mass for I2.
  • Final answer: 24,89 – 24,92 (g)

OPTION 3
answer op 3
6.3 (Chemical/dynamic) equilibrium 
OR
The rate of the forward reaction equals the rate of the reverse reaction. ✔  (1) 
6.4

  • Addition of a catalyst.
  • Increase in pressure. (2) 

6.5.1 Endothermic 

  • The rate of the forward reaction decreases more. / The rate of the reverse  reaction decreases less.
  • A decrease in temperature favours the exothermic reaction. (3)

6.5.2 Decreases  (1) 
6.6 Reactants / H2 / I2 removed

[18] 

QUESTION 7
7.1 A substance that ionises incompletely/to a small extent.(2) 
7.2

  • Oxalic acid
  • Higher Ka value
    OR
  • Carbonic acid has a lower Ka value .(2) 

7.3 

  • H2O
  • (COO)22 (2) 

7.4 7.4(4) 
7.5 
7.5.1 7.5(5)

7.5.2

  • C / phenolphthalein
  • Titration of weak acid and strong base.
    OR
  • The endpoint will be at pH > 7 which is in the range of the indicator.  (2)

[17] 

QUESTION 8
8.1 

8.1.1 Salt bridge  (1) 
8.1.2 Voltaic / Galvanic cell (1) 

8.2 

8.2.1 Decreases(1)
8.2.2 Increases (1) 

8.3 

8.3.1 Y(s) → Y2+(aq) + 2e- Ignore phases
OR
Mg(s) → Mg2+(aq) + 2e -

Notes
Y(s) ⇌ Y2+(aq) + 2e- (1/2)                                   Y2+(aq) + 2e- ← Y(s) (2/2) 

0) Y2+(aq) + 2e- ⇌ Y(s) (0/2)                                Y(s) ← Y2+(aq) + 2e- (0/2)

(2) 

8.3.2 Y(s) |Y2+(aq) ||Aℓ3+(aq) | Aℓ(s) OR/OF Mg(s) |Mg2+(aq) ||Aℓ3+(aq) | Aℓ(s 
OR
Y(s) | Y2+ (1 mol∙dm-3) || Aℓ3+(1 mol∙dm-3) | Aℓ(s) 
Accept
Y | Y2+ || Aℓ3+ | Aℓ (3) 
8.4 (5) 

OPTION 1
Eθcell =  Eθreduction -  Eθoxidation 

0,7 = -1, 66 - Eθoxidation 

Eθoxidation  =  -2,36 (V)

Y is Mg  

Notes

  • Accept any other correct formula from the  data sheet.
  • Any other formula using unconventional  abbreviations, e.g. E°cell = E°OA - E°RA  followed by correct substitutions:

OPTION 2

op2

[14] 

QUESTION 9
9.1 Bauxite (1)
9.2 Oxidation  (1)
9.3 Reduce melting point .
OR
To lower the temperature / energy needed to melt the Aℓ2O3. (1) 

ACCEPT

  • To dissolve the Aℓ2O3. so that it can electrolysed easier 

9.4 Aℓ3+(aq) + 3e- → Aℓ(s)
Ignore phases

Notes
Aℓ ← Aℓ3++ 3e- (2 /2)                       Aℓ3+ 3e- ⇌ Aℓ (1/2) 
Aℓ3+ 3e ← Aℓ (0/2                             Aℓ ⇌ Aℓ2+ + 3e- (0/2) 

(2) 
9.5

  • C + O2  → CO2  Bal
    OR
  • 2Aℓ2O3 + 3C  → 4Aℓ + 3CO2  Bal  

Notes

  • Reactants        Products                              Balancing
  • Ignore double arrows.
  • Marking rule 6.3.10

(3) 

[8]

QUESTION 10/VRAAG 10 
10.1 
10.1.1 Ostwald (process) (1) 
10.1.2 Catalyst/Speeds up the rate of the reaction (1)
10.1.3 Nitrogen dioxide  (1)
10.1.4 3NO2 + H2O ⇌ 2HNO3(aq) + NO Bal.  (2) 

Notes:

  • Products        Balancing
  • Ignore double arrows.
  • Marking rule 6.3.10. 

10.1.5

  • Decrease pressure / Increase volume
  • Decrease temperature \ (2) 

10.2 
10.2.1 (Ratio of the) nitrogen, phosphorous and potassium in the fertiliser.  (1)
10.2.2 (6) 

Marking criteria:

  • Use ratio 3/8
  • x 50 kg
  • x 25 / 25 %
  • Divide previous answer by  39
  • Multiply by 74,5 
  • Final answer 8,94 kg
ans 4 10
 

OPTION 4
%K =3/8 x 25 = 9,38% 

m(K) = 9,38  x 50 = 4,69 kg 
            100 
%K in KCℓ =   39   x 100 = 52,35% 
                    74,5 
52,35% KCℓ: 4,69 kg 

m(100% KCℓ) = 4,69  x 100 
                         52,35 
 = 8,96 kg

[14] 
TOTAL: 150

PHYSICAL SCIENCES: CHEMISTRY
PAPER 2
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. Write your examination number and centre number in the appropriate spaces on the ANSWER BOOK. 
  2. This question paper consists of TEN questions. Answer ALL the questions in  the ANSWER BOOK.
  3. Start EACH question on a NEW page in the ANSWER BOOK.
  4. Number the answers correctly according to the numbering system used in this  question paper.
  5. Leave ONE line between two subquestions, for example between  QUESTION 2.1 and QUESTION 2.2.
  6. You may use a non-programmable calculator. 
  7. You may use appropriate mathematical instruments. 
  8. You are advised to use the attached DATA SHEETS.
  9. Show ALL formulae and substitutions in ALL calculations.
  10. Round off your final numerical answers to a minimum of TWO decimal places.
  11. Give brief motivations, discussions, et cetera where required.
  12. Write neatly and legibly.

QUESTIONS 

QUESTION 1: MULTIPLE-CHOICE QUESTIONS 
Various options are provided as possible answers to the following questions. Write  down the question number (1.1–1.10), choose the answer and make a cross (X) over  the letter (A–D) of your choice in the ANSWER BOOK. 
EXAMPLE: 
1.11    EXAMPLE
1.1 Which ONE of the following is the product formed in the Haber process? 

  1. Nitrogen
  2. Ammonia
  3. Nitric acid
  4. Sulphuric acid (2) 

1.2 A carbonyl group is the functional group of … 

  1. alcohols.
  2. ketones.
  3. haloalkanes.
  4. carboxylic acids. (2) 

1.3 Consider the structure of an organic compound below.
ORGANIC COMPOUND
The IUPAC name of this compound is … 

  1. 2,3-dimethylbut-2-ene.
  2. 2,2-dimethylbut-2-ene.
  3. 1,1,2-trimethylprop-1-ene.
  4. 1,1,2,2-tetramethylethene. (2) 

1.4 Consider the reaction represented below. 
CH3CH2CH2CH2CH3     →     CH3CHCH2 + X
Which ONE of the following CORRECTLY gives the type of reaction that  takes place and the IUPAC name of product X? 

 

Type of reaction 

Product X

Elimination 

Ethane

Elimination 

Ethene

Addition 

Ethane

Addition 

Ethene

(2) 
1.5 Consider the following balanced equation of a chemical reaction:
2NaCℓ + 2H2O → Cℓ2 + H2 + 2NaOH 
Which ONE of the following statements about the reaction is correct? 
The reaction takes place in a/an … 

  1. galvanic cell and absorbs energy.
  2. galvanic cell and releases energy.
  3. electrolytic cell and absorbs energy.
  4. electrolytic cell and releases energy. (2) 

1.6 The following equation represents the reaction taking place in an  electrochemical cell: 
Ni(s) + Pb2+(aq) → Ni2+(aq) + Pb(s) 
The flow of electrons through the external circuit of this cell is from … 

  1. Pb at the anode to Ni at the cathode. 
  2. Pb at the cathode to Ni at the anode.
  3. Ni at the cathode to Pb at the anode.
  4. Ni at the anode to Pb at the cathode. (2) 

1.7 A solution has a pH = 1. This solution … 

  1. contains no OH ions.
  2. neutralises a hydrochloric acid solution of pH = 1.
  3. contains a higher concentration of H3O+ ions than OH ions.
  4. contains a higher concentration of OH ions than H3O+ ions. (2) 

1.8 A potential energy diagram can be used to show the activation energy (EA)  and the heat of reaction (ΔH) of a reaction. 
Which ONE of the following combinations of values of EA and ΔH CANNOT be obtained for any reaction? 

 

EA (kJ·mol-1

∆H (kJ·mol-1)

50 

-100

50 

+100

100 

+50

100 

-50

(2) 
1.9 Initially, 2 mol CO(g) and 2 mol H2(g) are sealed in a container. The reaction  reaches equilibrium according to the following balanced equation: 
CO(g) + 2H2(g) ⇌ CH3OH(g) 
At equilibrium the amount of CH3OH(g) in the mixture will be … 

  1. 1 mol.
  2. 2 mol.
  3. less than 1 mol.
  4. greater than 1 mol. (2)

1.10 The graph below represents the change in concentration of a reactant against  time for a chemical reaction. 
TIME CONC
In which ONE of the following graphs does the dotted line show the effect of a  catalyst on this reactant? 
1.10 ANS(2) 

[20] 

QUESTION 2 (Start on a new page.) 
The letters A to F in the table below represent six organic compounds. 
A2F
2.1 Write down the letter that represents EACH of the following: 

2.1.1 A hydrocarbon (1)
2.1.2 An alcohol (1)
2.1.3 An ester (1)

2.2 Write down the IUPAC name of: 

2.2.1 Compound A (1)
2.2.2 Compound B (3) 

2.3 Compound C is a functional isomer of compound A. Write down the structural  formula of compound C. (2) 
2.4 Compound D is used as one of the reactants to prepare compound F.  Write down the: 

2.4.1 Type of reaction which takes place to prepare compound F (1)
2.4.2 IUPAC name of compound D (2)
2.4.3 Structural formula of the other organic reactant used (2) 
2.4.4 IUPAC name of compound F (2)

[16]

QUESTION 3 (Start on a new page.) 
Learners investigate factors which influence the boiling points of alcohols. 
They use equal volumes of each of the alcohols and heat them separately in a water  bath. The temperature at which each boils is measured. The results obtained are  shown in the table below. 

ALCOHOLS 

BOILING POINTS OF ALCOHOLS 
(°C)

Butan-1-ol 

117,7

Pentan-1-ol 

138,5

Hexan-1-ol 

157,0

3.1 Define the term boiling point. (2)
3.2 What property of alcohols requires them to be heated in a water bath? (1)
3.3 The boiling points of the alcohols are compared with each other.  

3.3.1 What structural requirements must the alcohols meet to make it a  fair comparison? (2) 
3.3.2 Fully explain the trend in the boiling points. (3) 

3.4 How will the boiling point of hexan-1-ol be affected if the volume of hexan-1-ol used is doubled? Choose from INCREASES, DECREASES or REMAINS  THE SAME. (1) 
3.5 In another investigation the learners compare the boiling points of hexan-1-ol  and hexanal. 

3.5.1 Write down the independent variable for this comparison. (1) 
3.5.2 They find that the boiling point of hexan-1-ol is higher than that of  hexanal.  Fully explain this observation. (4)

[14]

QUESTION 4 (Start on a new page.) 
4.1 Consider the reactions represented in the flow diagram below.
FLOW DIAGRAM
Write down the: 

4.1.1 Type of reaction represented by reaction 1 (1) 
4.1.2 NAME or FORMULA of the inorganic reactant needed for  reaction 1 (1) 
4.1.3 Type of alcohol (PRIMARY, SECONDARY or TERTIARY) of which  alcohol A is an example (1) 
4.1.4 Type of reaction represented by reaction 2 (1)
4.1.5 IUPAC name of compound B (2)
4.1.6 Type of addition reaction represented by reaction 3 (1)
4.1.7 Balanced equation for reaction 3 using structural formulae (4) 

4.2 A wide range of synthetic polymers are produced by combining large  numbers of similar small organic molecules bonded to each other in a  repeating pattern. 
Polymer C below is an example of such a polymer. 
POLYMER C
Write down: 

4.2.1 ONE word for the underlined phrase (1) 
4.2.2 The homologous series to which the 'small organic molecules' used  to produce polymer C belong (1) 
4.2.3 The type of polymerisation which takes place to produce polymer C (1)

[14] 

QUESTION 5 (Start on a new page.) 
The reaction of copper(II) carbonate with excess dilute hydrochloric acid is used to  investigate the rate of reaction. The balanced equation for the reaction is: 
CuCO3(s) + 2HCℓ(aq) → CuCℓ2(aq) + H2O(ℓ) + CO2(g) 
The apparatus used is illustrated below. 
DILUTE HCL
5.1 State TWO ways in which the rate of the reaction above can be increased. (2) 
During the investigation, samples of both PURE and IMPURE copper(II) carbonate of  EQUAL mass are used. The graphs below are obtained from the results. 
MVTIME
5.2 Write down the reaction time for the reaction of the pure CuCO3 with HCℓ. (1) 
5.3 Assume that all the gas formed during the two reactions escape from the flask and that the impurities do not react. 
Calculate the: 

5.3.1 Average rate of the reaction of the pure sample over the first 20 s (3)
5.3.2 Percentage purity of the impure sample (4) 
5.3.3 Maximum volume of CO2(g) produced during the reaction of the  pure sample of CuCO3 if the reaction takes place at STANDARD  CONDITIONS (3) 

5.4 Sketch a graph of the volume of gas produced versus time for the reaction of  the pure CuCO3. Indicate the reaction time on the x-axis. (2)

[15] 

QUESTION 6 (Start on a new page.) 
Hydrogen and iodine are sealed in a 2 dm3 container. The reaction is allowed to reach  equilibrium at 700 K according to the following balanced equation: 
H2(g) + I2(g) ⇌ 2HI(g) 
6.1 Give a reason why changes in pressure will have no effect on the equilibrium  position. (1) 
6.2 At equilibrium, 0,028 mol H2(g) and 0,017 mol I2(g) are present in the  container.  
Calculate the initial mass of I2(g), in grams, that was sealed in the container, if  Kc for the reaction is 55,3 at 700 K. (9) 
The reaction rate versus time graph below represents different changes made to the  equilibrium mixture. 
REACTION
6.3 What do the parallel lines in the first two minutes indicate? (1) 
6.4 State TWO possible changes that could be made to the reaction conditions at  t = 2 minutes. (2) 
6.5 The temperature of the equilibrium mixture was changed at t = 4 minutes. 

6.5.1 Is the forward reaction EXOTHERMIC or ENDOTHERMIC?  Fully explain the answer. (3) 
6.5.2 How will this change influence the Kc value? Choose from  INCREASES, DECREASES or REMAINS THE SAME. (1) 

6.6 What change was made to the equilibrium mixture at t = 8 minutes? (1)

[18] 

QUESTION 7 (Start on a new page.) 
The Ka values for two weak acids, oxalic acid and carbonic acid, are as follows: 

NAME 

FORMULA 

Ka

Oxalic acid 

(COOH)

5,6 x 10-2

Carbonic acid 

H2CO

4,3 x 10-7

7.1 Define the term weak acid. (2) 
7.2 Which acid, OXALIC ACID or CARBONIC ACID, is stronger? Give a reason  for the answer. (2) 
7.3 Oxalic acid ionises in water according to the following balanced equation:
(COOH)2(s) + 2H2O(ℓ) ⇌ (COO)2−2 (aq) + 2H3O+(aq) 
Write down the FORMULAE of the TWO bases in this equation. (2) 
7.4 Learners prepare 2 dm3 of a sodium hydroxide solution of concentration  0,1 mol∙dm-3.  Calculate the pH of the solution. (4) 
7.5 During a titration of the sodium hydroxide solution in QUESTION 7.4 with  dilute oxalic acid, the learners find that 25,1 cm3 of the NaOH(aq) neutralises  exactly 14,2 cm3 of the (COOH)2(aq). 
The balanced equation for the reaction is as follows: 
2NaOH(aq) + (COOH)2(aq) → (COO)2Na2(aq) + 2H2O(ℓ) 

7.5.1 Calculate the concentration of the oxalic acid solution. (5) The following indicators are available for the titration: 

INDICATOR 

pH RANGE

3,1–4,4

6,0–7,6

8,3–10,0

7.5.2 Which ONE of the indicators above is most suitable for this  titration? Give a reason for the answer. (2)

[17]

QUESTION 8 (Start on a new page.) 
In the electrochemical cell shown below an aluminium electrode and another metal  electrode, Y, are used.  
electrode
8.1 Write down the: 

8.1.1 Name of component Q (1)
8.1.2 Type of electrochemical cell represented above (1) 

It is found that the mass of the aluminium electrode increases whilst the cell is  functioning. 
8.2 How will EACH of the following change while the cell is functioning?  Choose from INCREASES, DECREASES or REMAINS THE SAME. 

8.2.1 The concentration of Aℓ3+(aq) (1)
8.2.2 The concentration of Y2+(aq) (1)

8.3 Write down the: 

8.3.1 Half-reaction that takes place at electrode Y (2)
8.3.2 Cell notation of the cell (3)

8.4 The initial emf of this cell measured under standard conditions is 0,7 V. Identify metal Y by means of a calculation. (5)

[14] 

QUESTION 9 (Start on a new page.) 
The simplified diagram below shows an electrolytic cell used in the industrial extraction  of aluminium (Aℓ) from aluminium oxide at temperatures as high as 1 000 ºC. 
Electrode X is a carbon rod.  
moltes
The cell reaction that takes place is as follows: 
2Aℓ2O3(ℓ) → 4Aℓ(ℓ) + 3O2(g) 
9.1 Write down the name of the ore used as source of aluminium oxide. (1) 
9.2 Which half-reaction (OXIDATION or REDUCTION) takes place at  electrode X? (1) 
9.3 What is the function of the cryolite? (1) 9.4 Write down the reduction half-reaction. (2) 
9.5 Write down a balanced equation that shows why the carbon rod, X, must be  replaced regularly. (3)

[8] 

QUESTION 10 (Start on a new page.) 
10.1 The reactions represented below take place during one of the industrial  processes used in the fertiliser industry. 
                                           PT

  1. : 4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g)                                 ∆H < 0 
  2. NO(g) + O2(g) ⇌
  3. : NO2 + H2O(ℓ) ⇌ HNO3(aq) + _____
    Write down: 

10.1.1 The name of this industrial process (1)
10.1.2 The function of Pt in reaction I (1)
10.1.3 The NAME of product X (1)
10.1.4 A balanced equation for reaction III (2) 
10.1.5 TWO ways in which the yield of the NO(g) obtained in reaction I can be increased without changing the amount of reactants and  products (2)

10.2 NPK fertilisers contain NH4NO3, (NH4)3PO4 and KCℓ in varying proportions.

10.2.1 What does NPK mean? (1)
10.2.2 Consider the fertiliser illustrated below.  
fertiliser

Calculate the mass, in kg, of KCℓ needed to produce this fertiliser. (6)

[14] 
TOTAL: 150 

DATA FOR PHYSICAL SCIENCES GRADE 12 
PAPER 2 (CHEMISTRY) 
TABLE 1: PHYSICAL CONSTANTS

NAME

SYMBOL 

VALUE

Standard pressure 

 pθ

1,013 x 105 Pa

Molar gas volume at STP 

Vm 

22,4 dm3∙mol-1

Standard temperature 

Tθ

273 K

Charge on electron 

-1,6 x 10-19 C

Avogadro's constant 

N

6,02 x 1023 mol-1

TABLE 2: FORMULAE
table of formulaes
TABLE 3: THE PERIODIC TABLE OF ELEMENTS 
period table 2

TABLE 4A: STANDARD REDUCTION POTENTIALS
standard reduction potential
TABLE 4B: STANDARD REDUCTION POTENTIALS
standard reduction potential 2

PHYSICAL SCIENCES: PHYSICS
PAPER 1
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. Write your centre number and examination number in the appropriate spaces  on the ANSWER BOOK.
  2. This question paper consists of 10 questions. Answer ALL the questions in  the ANSWER BOOK. 
  3. Start EACH question on a NEW page in the ANSWER BOOK.
  4. Number the answers correctly according to the numbering system used in this  question paper.
  5. Leave ONE line between two subquestions, for example between  QUESTION 2.1 and QUESTION 2.2.
  6. You may use a non-programmable calculator. 
  7. You may use appropriate mathematical instruments. 
  8. You are advised to use the attached DATA SHEETS.
  9. Show ALL formulae and substitutions in ALL calculations.
  10. Round off your final numerical answers to a minimum of TWO decimal places.
  11. Give brief motivations, discussions et cetera where required.
  12. Write neatly and legibly.

QUESTIONS 

QUESTION 1: MULTIPLE-CHOICE QUESTIONS 
Various options are provided as possible answers to the following questions. Write  down the question number (1.1–1.10), choose the answer and make a cross (X) over  the letter (A–D) of your choice in the ANSWER BOOK. 
EXAMPLE: 
1.11   EXAMPLE
1.1 According to Newton's Second Law of Motion, the acceleration of an  object is … 

  1. independent of its mass. 
  2. always equal to its mass.
  3. directly proportional to its mass.
  4. inversely proportional to its mass. (2) 

1.2 The diagram below shows three blocks, P, Q and R, suspended from a  ceiling. The blocks are identical, stationary and have the same mass but are  at different heights above the ground.  
The connecting strings are massless and inextensible. The tensions in the  strings attached to blocks P, Q and R are TP, TQ and TR respectively. 
1.2
Which ONE of the following statements about the tensions is CORRECT? 

  1. TP > TQ > TR
  2. TP < TQ < TR 
  3. TP = TQ = TR
  4. TP > TQ and TQ < TR (2)

1.3 A ball is projected vertically upwards from the ground. It returns to the ground,  makes an elastic collision with the ground and then bounces to a maximum  height. Ignore air resistance. 
Which ONE of the following velocity-time graphs CORRECTLY describes the  motion of the ball? 
1.3(2) 
1.4 When the velocity of a moving object is doubled, the … 

  1. net work done by the object is doubled.
  2. kinetic energy of the object is doubled.
  3. potential energy of the object is doubled.
  4. linear momentum of the object is doubled. (2) 

1.5 The net work required to stop a moving object is equal to the … 

  1. inertia of the object. 
  2. change in kinetic energy of the object.
  3. change in momentum of the object.
  4. change in impulse of the object. (2)  

1.6 A stationary observer is listening to the sound coming from a sound source.  The listener hears a sound of a lower pitch when compared to that produced  by the source.  
What can you conclude about the source from this observation? 

  1. The source is at rest.
  2. The source is moving towards the listener.
  3. The source is moving away from the listener.
  4. There is an obstacle between the source and the listener. (2) 

1.7 Two charged particles are placed a distance, r, apart. The electrostatic force  exerted by one charged particle on the other is FE. 
Which ONE of the graphs below CORRECTLY represents the relationship  between the electrostatic force, FE, and the square of the distance, r2, between the two charges? 
1.7(2) 
1.8 In the circuit diagram below, the resistance of resistor R1 is TWICE the  resistance of resistor R2
The two resistors are connected in series and identical high-resistance  voltmeters are connected across each resistor. 
The readings on the voltmeters are V1 and V2 respectively. 
1.8
Which ONE of the following statements concerning the voltmeter readings is  CORRECT? 

  1. V1 = 2V2 
  2. V1 = ½V2 
  3. V1 = ¼V2 
  4. 2V1 = V2  (2) 

1.9 In a DC generator the current to the external circuit is delivered through the … 

  1. coils. 
  2. battery.
  3. slip rings. 
  4. split rings (commutators). (2) 

1.10 In an experiment on the photoelectric effect, the frequency of the incident light  is high enough to cause the removal of electrons from the surface of the  metal. 
The number of electrons ejected from the metal surface is proportional to the … 

  1. kinetic energy of the electrons.
  2. number of incident photons.
  3. work function of the metal.
  4. frequency of the incident light. (2)

[20] 

QUESTION 2 (Start on a new page.) 
In the diagram below, a small object of mass 2 kg is sliding at a constant velocity of  1,5 m⋅s-1 down a rough plane inclined at 7º to the horizontal surface.  
2
At the bottom of the plane, the object continues sliding onto the rough horizontal  surface and eventually comes to a stop. 
The coefficient of kinetic friction between the object and the surface is the same for  both the inclined surface and the horizontal surface. 

2.1 Write down the magnitude of the net force acting on the object. (1) 
2.2 Draw a labelled free-body diagram for the object while it is on the inclined  plane. (3) 
2.3 Calculate the: 

2.3.1 Magnitude of the frictional force acting on the object while it is sliding down the inclined plane (3) 
2.3.2 Coefficient of kinetic friction between the object and the surfaces (3) 
2.3.3 Distance the object travels on the horizontal surface before it  comes to a stop (5)

[15] 

QUESTION 3 (Start on a new page.) 
A hot-air balloon moves vertically downwards at a constant velocity of 1,2 m∙s-1.  When it reaches a height of 22 m from the ground, a ball is dropped from the balloon. 
Refer to the diagram below. 
3
Assume that the dropping of the ball has no effect on the speed of the hot-air balloon.  Ignore air friction for the motion of the ball. 

3.1 Explain the term projectile motion. (2)
3.2 Is the hot-air balloon in free fall? Give a reason for the answer. (2)
3.3 Calculate the time it takes for the ball to hit the ground after it is dropped. (4) 

When the ball lands on the ground, it is in contact with the ground for 0,3 s and then it bounces vertically upwards with a speed of 15 m∙s-1. 

3.4 Calculate how high the balloon is from the ground when the ball reaches its  maximum height after the first bounce. (6)

[14]

QUESTION 4 (Start on a new page.) 
4.1 Define the term impulse in words. (2) 
4.2 The diagram below shows a gun mounted on a mechanical support which is  fixed to the ground. The gun is capable of firing bullets rapidly in a horizontal  direction. 
Each bullet travels at a speed of 700 m∙s-1 in an easterly direction when it  leaves the gun. 
(Take the initial velocity of a bullet, before being fired, as zero.) 
4
The gun fires 220 bullets per minute. The mass of each bullet is 0,03 kg. Calculate the: 

4.2.1 Magnitude of the momentum of each bullet when it leaves the gun (3)
4.2.2 The net average force that each bullet exerts on the gun (5) 

4.3 Without any further calculation, write down the net average horizontal force  that the mechanical support exerts on the gun. (2)

[12] 

QUESTION 5 (Start on a new page.) 
A lift arrangement comprises an electric motor, a cage and its counterweight.  The counterweight moves vertically downwards as the cage moves upwards. The cage  and counterweight move at the same constant speed. Refer to the diagram below. 
5
The cage, carrying passengers, moves vertically upwards at a constant speed, covering 55 m in 3 minutes. The counterweight has a mass of 950 kg. The total mass  of the cage and passengers is 1 200 kg. The electric motor provides the power needed  to operate the lift system. Ignore the effects of friction. 

5.1 Define the term power in words. (2)
5.2 Calculate the work done by the: 

5.2.1 Gravitational force on the cage (3)
5.2.2 Counterweight on the cage (2) 

5.3 Calculate the average power required by the motor to operate the lift  arrangement in 3 minutes. Assume that there are no energy losses due to  heat and sound. (6)

[13] 

QUESTION 6 (Start on a new page.) 
6.1 A sound source is moving at constant velocity past a stationary observer. The  frequency detected as the source approaches the observer is 2 600 Hz. The  frequency detected as the source moves away from the observer is 1 750 Hz. 
Take the speed of sound in air as 340 m∙s-1

6.1.1 Name the phenomenon that describes the apparent change in  frequency detected by the observer. (1) 
6.1.2 State ONE practical application of the phenomenon in  QUESTION 6.1.1 in the field of medicine. (1) 
6.1.3 Calculate the speed of the moving source. (6) 
6.1.4 Will the observed frequency INCREASE, DECREASE or REMAIN  THE SAME if the velocity of the source increased as it: 

    1. Moves towards the observer (1) 
    2. Moves away from the observer (1) 

6.2 Spectral lines of star X at an observatory are observed to be red shifted.

6.2.1 Explain the term red shifted in terms of wavelength. (2) 
6.2.2 Will the frequency of the light observed from the star INCREASE,  DECREASE or REMAIN THE SAME? (1)

[13]

QUESTION 7 (Start on a new page.) 
7.1 A metal sphere A, suspended from a wooden beam by means of a  non-conducting string, has a charge of +6 µC. 

7.1.1 Were electrons ADDED TO or REMOVED FROM the sphere to  obtain this charge? Assume that the sphere was initially neutral. (1) 
7.1.2 Calculate the number of electrons added to or removed from the  sphere. (3) 

7.2 Point charges Q1, Q2 and Q3 are arranged at the corners of a right-angled  triangle, as shown in the diagram below. 
7
The charges on Q1 and Q2 are + 2 µC and – 2 µC respectively and the  magnitude of the charge on Q3 is 6 µC. 
The distance between Q1 and Q3 is r. The distance between Q2 and Q3 is  also r. 
The charge Q3 experiences a resultant electrostatic force of 0,12 N to  the west. 

7.2.1 Without calculation, identify the sign (positive or negative) on the  charge Q3. (1) 
7.2.2 Draw a vector diagram to show the electrostatic forces acting on Q3 due to charges Q1 and Q2 respectively. (2) 
7.2.3 Write down an expression, in terms of r, for the horizontal  component of the electrostatic force exerted on Q3 by Q1. (3) 
7.2.4 Calculate the distance r. (4) 

7.3 The magnitude of the electric field is 100 N·C-1 at a point which is 0,6 m away  from a point charge Q. 

7.3.1 Define the term electric field at a point in words. (2) 
7.3.2 Calculate the distance from point charge Q at which the magnitude  of the electric field is 50 N∙C-1. (5)

[21] 

QUESTION 8 (Start on a new page). 
8.1 In Circuit 1 below three identical light bulbs, P, Q and R, with the same  resistance, are connected to a battery with emf ε and negligible internal  resistance. 
8A

8.1.1 How does the brightness of bulb P compare with that of bulb Q? Give a reason for the answer. (2)
8.1.2 How does the brightness of bulb P compare with that of bulb R? Give a reason for the answer. (2) 

A fourth, identical bulb T, with the same resistance as the other three, is  connected to the circuit by means of an ordinary wire of negligible resistance, as shown in Circuit 2 below. 
8B

8.1.3 How does the brightness of bulb T compare with that of bulb R? Give a reason for the answer. (2)

8.2 A battery with an emf of 20 V and an internal resistance of 1 Ω is connected  to three resistors, as shown in the circuit below. 
8C
Calculate the: 

8.2.1 Current in the 8 Ω resistor (6)
8.2.2 Potential difference across the 5 Ω resistor (4) 
8.2.3 Total power supplied by the battery (3)

[19] 

QUESTION 9 (Start on a new page.) 
The diagram below shows a simplified version of an AC generator. 
275 ac generator
9.1 Name the component in this arrangement that makes it different from a DC  generator. (1) 
9.2 Sketch a graph of induced emf versus time for TWO complete rotations of the  coil. (2) 
A practical version of the generator above has a large number of turns of the coil and it  produces an rms potential difference of 240 V. 
9.3 State TWO ways in which the induced emf can be increased. (2)
9.4 Define the term root mean square (rms) value of an AC potential difference. (2) 
9.5 The practical version of the generator above is connected across an  appliance rated at 1 500 W. Calculate the rms current passing through the appliance. (3)

[10]

QUESTION 10 (Start on a new page.) 
The graph below is obtained for an experiment on the photoelectric effect using different frequencies of light and a given metal plate. 
10
The threshold frequency for the metal is 6,8 x 1014 Hz. 
10.1 Define the term threshold frequency. (2)
In the experiment, the brightness of the light incident on the metal surface is increased.
10.2 State how this change will influence the speed of the photoelectrons emitted. 
Choose from INCREASES, DECREASES or REMAINS UNCHANGED. (1) 
10.3 Show by means of a calculation whether the photoelectric effect will be  OBSERVED or NOT OBSERVED, if monochromatic light with a wavelength of 6 x 10-7 m is used in this experiment. (5) 
One of the radiations used in this experiment has a frequency of 7,8 x 1014 Hz. 
10.4 Calculate the maximum speed of an ejected photoelectron. (5)

[13] 
TOTAL: 150 

DATA FOR PHYSICAL SCIENCES GRADE 12 
PAPER 1 (PHYSICS) 
TABLE 1: PHYSICAL CONSTANTS

NAME

SYMBOL 

VALUE

Acceleration due to gravity 

9,8 m•s-2

Universal gravitational constant 

6,67 × 10-11 N•m2•kg-2

Speed of light in a vacuum 

3,0 × 108 m•s-1

Planck's constant 

6,63 × 10-34 J•s

Coulomb's constant 

9,0 × 109 N•m2•C-2

Charge on electron 

-1,6 × 10-19 C

Electron mass 

me 

9,11 × 10-31 kg

Mass of earth 

5,98 × 1024 kg

Radius of earth 

RE 

6,38 × 103 km

TABLE 2: FORMULAE
MOTION

vf = vi + aΔt Δx = ViΔt + ½aΔt2      or     Δy = ViΔt2 + ½aΔt2

Vf2 = Vi2 + 2aΔx   or    Vf2 = vi2 + 2aΔy

 Δx = [Vi + Vf]Δt        or        Δy = [Vi + Vf]Δt 
               2                                        2

FORCE

Fnet = ma 

p= mv

fsmax = µsN

fk = µkN

FnetΔt = Δp
Δp = mvf - mvi

w =mg 

F  = Gm1m2
          d2

g = G  M    
          d

WORK, ENERGY AND POWER

W =FΔxcosθ 

U= mgh or  EP = mgh 

K = ½mv2   or      Ek = ½mv2 

Wnet = ΔK   or    Wnet = ΔEk 

ΔK = Kf −Ki or     ΔEk =Ekf − Eki 

Wnc= ΔK + ΔU  or    Wnc= ΔEk + ΔEp

P =   W  
        Δt

Pav = Fv

 

WAVES, SOUND AND LIGHT

v = f λ

T =1/

fl v ± vl    fs      fl = v ± vl    fb
       v ±  vs               v ±  vb

E = hf    or   E =  h c  
                               λ

E = W0 + Ek where 
E = hf and W0 = hf0  and Ek  = ½mv    or   Kmax  = ½mv2max 

ELECTROSTATICS

F =   kQ1Q2    
           r2

E = KQ  
        r2 

E = V  
       d

 E = F  
       q 

V = 
       q 

n = Q  
      q

ELECTRIC CIRCUITS

R =
       I 

emf (ε) = I(R + r)
emk (ε) = I(R + r)

RS = R1 + R2 + .......
 1   = 1 + 1 + .........
RP = R1 + R2

q = I Δt

W = Vq 
W = VIΔt  
W= I2RΔt  
W=V2Δt 
        R 

P= W   
     Δt 
P = VI 
P = I2
P = V2 
      R 

ALTERNATING CURRENT

I rms Imax             
           √2                                         
Vrms = Vmax          
             √2                                      

Paverage  = VrmsIrms
Paverage  = I2rms = I2rmsR
Paverage  = V2rms 
                   R

PHYSICAL SCIENCES: PHYSICS
PAPER 1
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

GENERAL MARKING GUIDELINES
1. CALCULATIONS

1.1 Marks will be awarded for: correct formula, correct substitution,  correct answer with unit. 
1.2 No marks will be awarded if an incorrect or inappropriate  formula is used, even though there may be relevant symbols and  applicable substitutions. 
When an error is made during substitution into a correct  formula, a mark will be awarded for the correct formula and for the  correct substitutions, but no further marks will be given. 
1.3 If no formula is given, but all substitutions are correct, a  candidate will forfeit one mark. 
1.4 No penalisation if zero substitutions are omitted in calculations  where correct formula/principle is given correctly.  
1.5 Mathematical manipulations and change of subject of appropriate  formulae carry no marks, but if a candidate starts off with the  correct formula and then changes the subject of the formula  incorrectly, marks will be awarded for the formula and the correct  substitutions. The mark for the incorrect numerical answer is  forfeited. 
1.6 Marks are only awarded for a formula if a calculation has been  attempted, i.e. substitutions have been made or a numerical  answer given. 
1.7 Marks can only be allocated for substitutions when values are  substituted into formulae and not when listed before a calculation  starts. 
1.8 All calculations, when not specified in the question, must be done  to a minimum of TWO decimal places. 
1.9 If a final answer to a calculation is correct, full marks will not  automatically be awarded. Markers will always ensure that the  correct/appropriate formula is used and that workings, including  substitutions, are correct. 
1.10 Questions where a series of calculations have to be made (e.g. a  circuit diagram question) do not necessarily always have to follow  the same order. FULL MARKS will be awarded provided it is a valid  solution to the problem. However, any calculation that will not bring  the candidate closer to the answer than the original data, will not  count any marks. 

2. UNITS

2.1 Candidates will only be penalised once for the repeated use of an  incorrect unit within a question. 
2.2 Units are only required in the final answer to a calculation. Eenhede word slegs in die finale antwoord op 'n vraag verlang. 
2.3 Marks are only awarded for an answer, and not for a unit per se.  Candidates will therefore forfeit the mark allocated for the answer  in each of the following situations: 

    • Correct answer + wrong unit 
    • Wrong answer + correct unit
    • Correct answer + no unit 

2.4 SI units must be used except in certain cases, e.g. V∙m-1instead of  N∙C-1, and cm∙s-1or km∙h-1 instead of m∙s-1 where the question  warrants this. 

3. GENERAL

3.1 If one answer or calculation is required, but two given by the  candidate, only the first one will be marked, irrespective of which  one is correct. If two answers are required, only the first two will be  marked, etc. 
3.2 For marking purposes, alternative symbols (s, u, t, etc.) will also be  accepted. 
3.3 Separate compound units with a multiplication dot, not a full stop,  for example, m·s -1. For marking purposes m.s-1and m/s will also  be accepted. 

4. POSITIVE MARKING 
Positive marking regarding calculations will be followed in the following cases: 

4.1 Subquestion to subquestion: When a certain variable is  incorrectly calculated in one subquestion (e.g. 3.1) and needs to be  substituted into another subquestion (3.2 or 3.3), full marks are to  be awarded for the subsequent subquestions 
4.2 Multi-step question in a subquestion: If the candidate has to  calculate, for example, current in the first step and gets it wrong  due to a substitution error, the mark for the substitution and the  final answer will be forfeited.

5. NEGATIVE MARKING
Normally an incorrect answer cannot be correctly motivated if based on a  conceptual mistake. If the candidate is therefore required to motivate in  QUESTION 3.2 the answer given to QUESTION 3.1, and 3.1 is incorrect, no  marks can be awarded for QUESTION 3.2. However, if the answer for e.g.  QUESTION 3.1 is based on a calculation, the motivation for the incorrect  answer in QUESTION 3.2 should be considered. 

MEMORANDUM

QUESTION 1
1.1 D✔✔ (2)
1.2 C✔✔ (2)
1.3 A✔✔ (2)
1.4 D✔✔ (2)
1.5 B✔✔ (2)
1.6 C✔✔ (2)
1.7 B✔✔ (2)
1.8 A✔✔ (2)
1.9 D✔✔ (2) 
1.10 B✔✔ (2)

[20]

QUESTION 2
2.1 0 N/zero✔ (1)
2.2 
1M

Accepted labels

w

Fg/Fw/weight/mg/gravitational force/N/19,6 N 

f

Ff riction/Ff/friction/fk 

N

FN/Fnormal/normal force  

 

Deduct 1 mark for any additional force. 

 

Mark is given for both arrow and label 

  • 1 mark if BOTH components of  weight are shown.
  • All other rules in the table apply. (3)  

2.3.1

  • Fnet = ma
    fk - mgsinθ = 0
    fk = mgsinθ 
  • fk - mgsinθ = 0
  • fk = mgsinθ  

✔ 1 mark for any of these

 fk = (2)(9,8) sin7º ✔ 
fk = 2,39 N ✔ (2,389) N (3) 

2.3.2 POSITIVE MARKING FROM QUESTION 2.3.1

  • fk = μkN
    = μkmgcos7º
    ✔ 1 mark for any of these
    2,389 = μk(2)(9,8)cos7º ✔ 
    µk = 0,12 ✔ (3) 

2.3.3 POSITIVE MARKING FROM QUESTION 2.3.2
OPTION 1

  • Fnet = ma
    - fk = ma
    - μkN = ma - μk(mg) = ma
    ✔ 1 mark for any of these
    - (0,12)(2)(9,8) ✔= 2a✔
    a = -1,176 m.s-2      (-1,18)
    vf2 = vi2 + 2aΔx
    0 = (1,5)2+ 2(-1,176)Δx✔
    Δx = 0,96 m
    Distance is 0,96 m✔ 

OPTION 2

  • Wnet = ΔK 
    Wnet = ΔE
    Wnc = ∆K + ∆U
    Wnc = ∆EK + ∆EP
    μkN∆x cos θ = ½ mvf2– ½ mvi2 
    1 mark for any of these
    NOTE: substituting into any of the above equations will lead to the  following:
    (0,12) (2)(9,8) ✔∆x cos 180º ✔= 0 – ½ (2)(1,5)2
    ∆x = 0,957 m✔ (5) 

[15] 

QUESTION 3
3.1

  • (Motion of) an object in which the only force acting is the gravitational  force. ✔✔ 
    OR
    (Motion of)an object which has been given an initial velocity and which follows  a path entirely determined by the effects of gravitational  acceleration/force. ✔✔
    OR
    The (motion of )an object that is projected, thrown or shot either upwards or  downwards into the air and on which the only force considered/acting is  gravitational. ✔✔ (2)
    Note: 2 or/of 0 

3.2 No ✔ 

  • The balloon is not accelerating at the rate of 9,8 m∙s-2/moving with constant  velocity/acceleration is 0 m∙s-2✔ (2)
    OR
    There are other forces (e.g.,friction) acting on the balloon besides  gravity.✔
    Net force acting on the balloon is zero

3.3 

OPTION 1
Upward positive
Δy = viΔt + ½ aΔt2✔ 
-22✔ = (-1,2) Δt + ½ (-9,8)Δt2✔  
Δt = 2 s✔ 

Downward positive 
Δy = viΔt + ½ aΔt2✔ 
22✔ = (1,2) Δt + ½ (9,8)Δt2✔  
Δt = 2 s✔

OPTION 2
Upward positive
vf2 = vi2 + 2aΔy✔
vf2 =  =(-1,2)2 + (2)(-9,8)(-22) 
vf = -20,8m.s-1
For both equations ✔

vf = vi + aΔt  ✔
-20,8 = -1,2 + -9,8Δt✔ 
Δt = 2 s✔ 

Downward positive

vf2 = vi2 + 2aΔy
vf2 = (1,,2)2 + (2)(9,8)(22) 
vf = 20,8 m∙s-1 

For both equations ✔

vf = vi + aΔt  
20,8 = 1,2 + 9,8Δt✔ 
Δt = 2 s✔ 

OPTION 3
Upward positive
vf2 = vi2 + 2aΔy
vf2 = [(-1,2)2 +(2)(-9,8)(-22)]
vf = -20,8 m∙s-
Δy = vf + vΔt 
   
         2
-22 = ( -1.2 + -20,8) Δt
                    2
Δt = 2s

For both equations ✔ 

Downward positive
vf2 = vi2 + 2aΔy
vf2 = [(1,2)2 +(2)(9,8)(22)]
vf = -20,8 m∙s-
Δy = vf + vf  Δt 
   
         2
-22 = ( 1.2 +   20,8) Δt
                    2
Δt = 2s
For both equations  ✔ 

OPTION 4
(Emech)Top = (Emech)Ground
(EP +EK)Top = (EP +EK)Bottom
1 mark for any 
(mgh + ½ mv2)Top = (mgh + ½ mv2)Bottom
Wnet = ∆EK 
(9,8)(22) + ½ (1,2)2 = 0 + (½ )(vf2) ✔ 
vf = 20,80 m∙s-1 
vf = vi + aΔt  
20,8 = 1,2 + 9,8Δt✔ 
Δt = 2 s✔ 

NOTES: 

  • Each substitution must include the correct values of 22 m and the velocity  of 1,2 m∙s-1 
  • The values of vf and vi can also be used with Fnet∆t = ∆p = (pf – pi) = (mvf – mvi

 (4) 

3.4 

Upward positive
POSITIVE MARKING FROM QUESTION 3.3 

vf = vi + aΔt ✔ 
0 = 15 + (-9,8)Δt✔ 
Δt = 1,53 s  
For addition
Total time elapsed = 2 + 1,53 + 0,3✔  
= 3,83s

OR
Displacement of the balloon
Δy = viΔt + ½ aΔt
 = -(1,2)(3,83) ✔ 
= - 4,6 m 
Height :
= 22 - 4,6✔ 
= 17,4m✔ 

OR
yf = yi +∆y 
 = [22 – (1,2)(3,83)]✔ ✔ 
 = 17,4 m 
Height = 17,4 m✔ 

Downward Positive
POSITIVE MARKING FROM QUESTION 3.3

vf = vi + aΔt ✔ 
0 = 15 + (-9,8)Δt✔ 
Δt = 1,53 s  
For addition
Total time elapsed = 2 + 1,53 + 0,3✔  
= 3,83s

OR
Displacement of the balloon
Δy = viΔt + ½ aΔt
 = -(1,2)(3,83) ✔ 
= - 4,6 m 
Height :
= 22 - 4,6✔ 
= 17,4m✔ 

OR
yf = yi +∆y 
 = [-22 + (1,2)(3,83)]✔ ✔ 
 = 17,4 m 
Height = 17,4 m✔ 

(6) 
[14] 

4.1 It is the product of the resultant/net force acting on an object✔ and the time  the resultant/net force acts on the object. ✔  (2)
NOTE: ONLY 1 MARK FOR “CHANGE IN MOMENTUM”
4.2.1 (3) 

p = mv✔ 
 = (0,03)(700) ✔ 
 = 21 kg∙m∙s-1✔  
Note: 2/3 if ∆p = (pf – pi) = (mvf – mvi) is used. 

4.2.2 

OPTION 1
POSITIVE MARKING FROM 4.2.1

∆t for a bullet =    60✔    = 0,27 s 
                            220 
Fnet∆t = ∆p = (pf – pi) = (mvf – mvi)  
Fave gun on bullet  Δp     
                               Δt 
✔ 1 mark for any one
= 21- 0
    0,27 
 = 77,01 N ✔ (77,78 N) 
∴average force of bullet on gun
= 77,01 N/ 77,8 N to the west ✔

OR

-77,01 N / - 77,78 N  

OPTION 2
POSITIVE MARKING FROM 4.2.1
Fnet∆t = ∆p = (pf – pi) = (mvf – mvi)  
Fav = Δp    
          Δt 
✔ 1 mark for any one
∆ptot = (21)(220) = 4 620 kg∙m∙s-1 
 Fave gun on bullet = 4 620 - 0✔ 
                                      60 
 = 77,00 N✔ 
∴average force of bullet on gun
= 77,01 N /77,78 N to the west ✔ 

OR

- 77,01 N / -77,78 N 

OPTION 3
vf = vi + a∆t 
a =    700- 0✔   
       (60/ 220) 
a = 2592,59 m∙s-2 
Fnet= ma ✔ 
Fnet = (0,03)(2592,59) ✔ 
Fav = 77,78 N✔ 
∴average force of bullet on gun
= 77,01 N / 77,78 N to the west ✔

OR 

= - 77,01 N/ -77,78 

NOTE: ACCEPT RANGE: 77 N - 77,78 N

(5) 

4.3 

POSITIVE MARKING FROM 4.2.2

77 N/77,78 N✔ to the east✔ 

(2) 
[12] 

QUESTION 5
5.1 (2) 

The rate at which work is done/ Rate at which energy is expended. ✔✔ 

5.2.1 (3) 

OPTION 1
W = F∆xcosθ✔ 
Wgravity  = mg∆ycosθ 
 = (1 200)(9,8)(55)cos180º ✔ 
 = - 646 800 J (6,47 x105J)✔

OPTION 2
W = - ∆Ep✔ 
 = -(1200)(9,8)(55 -0) ✔ 
 = -646800 J✔ 

-1 if either negative is omitted or Ep = mgh is used instead of W  

5.2.2 (2) 

Wcounterw eight = mg∆ycosθ 
 = (950)(9,8)(55)cos0º ✔ 
 = 512 050 J (5,12 x105J)✔ 

5.3 

OPTION 1
POSITIVE MARKING FROM QUESTIONS 5.2.1 AND 5.2.2 
Wnet = ∆EK ✔ 
Wgravity + Wcountw eight + Wmotor = 0 
Wmotor = - (Wgravity + Wcountweight
Wnc = ∆EK + ∆E
1 mark for any one
NOTE: Substituting into any of the above equations will lead to: 

-646800✔ + 512050 ✔+ Wmotor = 0 
∴Wmotor = 134 750 J 
P ave motor W  
                       Δt✔ 
134750 ✔ 
       180 
 = 748,61 W✔ 

OPTION 2
Fnet = 0 
Fgcage + Fgcount + Fmotor = Fnet 
✔ 1 mark for any one
-117600✔ + 9310✔ + Fmotor = 0
Fmotor = 2450 N 
Pave = Fvave✔ 
 = 2450  55  ✔ 
            180 
 = 748,61 W 

OPTION 3
P ave = Fvave ✔✔ 
                   ✔              ✔
 = [1200 (9,8) – 950(9,8)]   55    ✔     
                                          180 
 = 748,61 W✔ 

(6) 
[13] 

QUESTION 6
6.1.1 The Doppler effect.✔ (1)
6.1.2 Measuring the rate of blood flow
OR
Ultrasound (scanning)✔ (1) 

6.1.3 (6) 

FL = V   ±  VL  F  OR       FL    V     FS     OR  FL =      V    FS
        V  ±   VS                              V - VS                          V + VS
2600 =     340    FS
         ( 340  - VS)  
1750  =    340      FS
            ( 340  - VS)  
 2600(340-vs) = 1750(340 + vs
vs = 66,44 m∙s-1 ✔ 

6.1.4

  1. Increase✔ (1) 
  2. Decrease/✔ (1) 

6.2.1 The spectral lines (light) from the star are shifted towards longer  wavelengths. ✔✔ (2) 
6.2.2 Decrease ✔ (1)

[13]

QUESTION 7
7.1.1 Removed✔  (1) 
7.1.2 (3) 

n = 
      e 

Do not penalise for negative sign of charge used in calculation

  6 × 10-6
     1,6 ×10-19 
 = 3,75 x 1013 electrons

7.2.1 Negative ✔ (1) 
7.2.2 WHHHAT(2) 

NOTE: 
Vectors not drawn to scale
Learners forfeit 1 mark for:

  1. Wrong directions/verkeerde rigtings 
    OR
    Arrows not shown/Pyltjies nie aangedui nie 

Give credit to the required forces even if a triangle of forces is drawn.
ACCEPT: two separate diagrams 
ACCEPT:correctly drawn vector but no labels

7.2.3 (3)

F = KQ1Q2 
         r2
F1,3X = (9 × 109)(2 × 10-6) (6 × 10-6  (cos 45º)  = (0,0764)
                               r2                                                   r2
ACCEPT:
F = KQ1Q2 
         r2
F1,3XKQ1Q2   (cos 45º) 
                  r2                                                (3)

7.2.4 (4) 

POSITIVE MARKING FROM QUESTION 7.2.3
OPTION 1
F = KQ1Q2 
         r2
F2,3X = (9 × 109)(2 × 10-6) (6 × 10-6  (cos 45º)  = (0,0764)
                               r2                                                   r2

Fx = F1,3x + F2,3x 
Fx = 0,0764     0,0764    = 2 0,0764  
          r2                   r2                   r2  

1 mark for the addition 

NOTE: Fy net = 0
(0,12) ✔ =  0,1528
                      r2   
r = 1,128 m ✔ 

OPTION 2
Fnet2 = (F1,3 )2 + (F2,3)2 

= (K  Q1Q3 )2   + (K  Q2Q3)2
           r2                       r2
= 2 (K  Q1Q3 )2  
           r
✔1 mark for any of the three 
= 2 [(9 × 109)(2 × 10-6) (6 × 10-6)]2
                                    r2

= 2 (0,108)   
             r4
(0,12)2 = 2 (0,108)2   
                     r4
∴r = 1,128 m✔ 
NOTE:  Fnet = Fnet(x) since Fnet (y) = 0

7.3.1 The electric field at a point is the (electrostatic) force experienced ✔per unit positive charge ✔placed at that point   (2)
7.3.2  (5) 

OPTION 1
E =  kQ  
         r2

100 =  (9×109 )Q 
               (0,6)2 
Q = 4 x 10-9

When the electric field strength 50 is N∙C-1

E =  kQ  
         r2

50 =  (9×109 )  (4 x 10-9)          
                     (0,6)2 
✔ For the equation

 r = 0,85 m (0,845) m✔ 

OPTION 2

E =  kQ  
         r2

E1 r22
   E    r12
  100   =    r2
   50        (0,6)2

∴r = 0,85 m (0,849 m)✔ 

[21]

QUESTION 8
NEGATIVE MARKING FOR 8.1.1,8.1.2 AND 8.1.3
8.1.1

  • P and Q burn with the same brightness ✔ same potential difference/same  current✔  (2) 

8.1.2

  • P is dimmer (less bright) than R
    OR
  • R is brighter than P✔
    R is connected across the battery alone therefore the voltage (terminal pd) is  the same as the emf source (energy delivered by the source). ✔
    OR
    The potential difference across R is twice (larger/greater than) that of P./The  current through R is twice (larger/greater than) that of P.
    OR
    P and Q are in series and are both connected across the same battery, ✔ hence the voltage (terminal pd) is shared equally ✔(P and Q are potential  dividers) Therefore R is brighter.
    OR
    Potential difference across P is half that across R(2)

8.1.3 T does not light up at all✔ 
ACCEPT

  • T is dimmer (less bright) than R✔
  • R is brighter than T✔
    Reason
    • The wire acts as a short circuit. ✔
      OR
    • The potential difference across T / current in T is zero.✔  (2) 

8.2.1  opt 2
opt 2 2(6) 

8.2.2 

OPTION 1 
V = IR 
V5 = ℇ – (V8 + V1
Any one✔
= 20✔ – [ 1,62(8 + 1)]✔ 
 = 5,42 V✔ 

OPTION 2
POSITIVE MARKING FROM 8.2.1
R// =    ( 5)( 10)   = 3,33Ω                                   V|| = IR|| ✔ 
             5  + 10                                                    = (1,62)(3.33) ✔✔  = 5,39 V ✔

VR// =  R//     × Vtot 
           Rtot 
VR// =  (3,33)  (20)✔✔ 
          (12,33 )
 = 5,41 V✔ 

OPTION 3
POSITIVE MARKING FROM 8.2.1 ✔ 
I5R5 = I10R10
5I5    = 10(1,62 - I5) ✔ 
I5 = 1,08 A 
V5 = (1,08 )(5) ✔ 
 = 5,4 V✔ 

(4)

POSITIVE MARKING FROM 8.2.1
OPTION 4

I5 10   ×   Itot
        15
= 2 (1,62)
   3
= 1,08 A 

V5 = I 5 R5 ✔ 
V5 = (1,08 )(5) ✔ 
 = 5,4 V✔ 

(4) 
8.2.3 

POSITIVE MARKING FROM 8.2.1
OPTION 1 
P = IV = Iℇ ✔ 
 = (1,62)(20)✔ 
= 32,4 W✔

POSITIVE MARKING FROM 8.2.1
OPTION 2
P = IV✔ 
Ptot = P + P// + P 
 = IV8 + IV// + IV1 
 = I2(R8 +R//+ R1
 = (1,62)2[8 +3,33 + 1)] ✔ 
 = 32,36 W✔

POSITIVE MARKING FROM 8.2.1 AND 8.2.2
OPTION 3
P = I2R
I5 = V5 = 5,4  = 1,08 A 
       R5     5 
∴ I10 = 0,5A
Ptot = I28R8  +  I25R5   + I210R10
= (1,62)2[8 + 1] + (1,08)2(5) + (0,54)2(10) ✔ = 32,37 W✔

OPTION 4

P = V2
      R
P =        202           
         (8 +1+ 3,33) 

 = 32,44 W✔ 

P = I2Rtot ✔ 
 = (1,62)2(12,33) ✔ 
= 32,36 W✔

(3) 

NOTE: Range 32,35- 32,45 

[19]

QUESTION 9
9.1 Slip rings ✔ (1)
9.2 Q9GHSD    (2) 

Marking criteria

 

Sine graph starts from 0. 

Two complete waves (between t0 and t2) 

9.3 Any TWO

  • Increase the speed of rotation✔
  • Increase the number of coils (turns)✔
  • Use stronger magnets
    ACCEPT: Increase surface area(2) 

9.4

  • The rms value of an AC voltage it that value of the AC voltage which will  dissipate the same amount of energy as DC. 
    OR
  • The rms value of an AC voltage it that value of the AC voltage which will  produce the same joule heating effect as DC.  (2)

9.5 (3) 

OPTION 1
Pave = Irms/w gkVrms/w gk ✔ 

1500 = Irms/w gk(240) ✔ 

Irms/w gk = 1500 
                 240 
 = 6,25 A ✔

OPTION 2 
Pave =2✔ 
           R

1500 =  2402    
                R 

R = 38,4 Ω 
Irms = V 
          R
=    240✔ 
     38,4 

 = 6,25 A✔ 

[10]

QUESTION 10
10.1

  • The minimum frequency of light ✔needed to emit electrons from a certain  metal surface.✔
    OR
  • The minimum frequency of light✔ below which electrons will not be emitted  from the surface of a certain metal. ✔ . (2) 

10.2 The speed remains unchanged. ✔  (1) 
10.3 (5)

OPTION 1
c = fλ✔, 
3 x 108 = f(6 x 10-7) ✔ 
∴ f = 5 x 1014 Hz✔ 

  • The value of f is less than the threshold frequency of the metal, ✔ therefore  photoelectric effect is not observed.✔ 

OPTION 2 
For the given metal
W0 = hf0✔ 
 = (6,63 x 10 -34)(6,8 x 1014 )✔ 
 = 4,51 x 10-19
For the given wavelength
Ephoton = hc  
                 λ
(6,63 ×10-34)(3×108 )✔ 
               6×10 -7
= 3,32 x 10-19 J  
Ephoton = hf 
 =( 6,63 x 10-34)(5 x 1014) ✔ 
 = 3,32 x 10-19 J  

  •  This energy is less than the work function✔ of the metal,therefore  photoelectric effect is not observed.✔ 

OPTION 3

c = f0λ0✔ 
3 x 108 = 6,8 x 10140) ✔ 
λ0 = 4,41 x 10-7 m✔ 

  • The threshold wavelength (λ0) is smaller than 6 x 10-7 m ✔ therefore  photoelectric effect is not observed.✔ 

10.4 (5)  

E = Wº   +   EK(MAX)

  • E =  Wº   +   ½mv2max
  • hc/λ = hfº   +    ½mv2max
  • hf = hfº   +    ½mv2max

Any one of the three ✔

(6,63 x 10-34)(7,8 x 1014) ✔ = (6,63 x 10-34)(6,8 x 1014) + ½mv2max
 ½mv2max = 6,63 x 10-20
½ (9,11 x 10-31) v2max ✔= 6,63 x 10-20 
                         vmax = 3,82 x 105 m∙s-1✔ 

[13] 
TOTAL: 150

MUSIC
PAPER 1
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. This question paper consists of FIVE sections, namely SECTIONS A, B, C,  D and E.  
  2. SECTIONS A and B are COMPULSORY.
  3. SECTION C: WESTERN ART MUSIC (WAM), SECTION D: JAZZ and  SECTION E: INDIGENOUS AFRICAN MUSIC (IAM) are choice questions.  Answer only ONE of these sections (SECTION C or D or E).
  4. Write all music notations in SECTION A in pencil and all written text in blue or  black ink on this question paper.
  5. Answer SECTION B and SECTION C or D or E in blue or black ink in the  ANSWER BOOK provided.
  6. Number the questions correctly according to the numbering system used in  this question paper.
  7. The last page of this question paper is manuscript paper intended for rough  work. Candidates may remove this page.
  8. Candidates may NOT have access to any musical instrument for the duration  of this examination.
  9. Candidates must take note of the mark allocation for each question to provide  enough information in their answers.
  10. Write neatly and legibly.

MARKING GRID

SECTION 

QUESTION 

MARKS 

MARKER 

MODERATOR

A: THEORY OF MUSIC (COMPULSORY)

20

   

15

   

10

   

15

   

SUBTOTAL 

60

   

AND

B: GENERAL MUSIC  KNOWLEDGE 

(COMPULSORY)

20

   

SUBTOTAL 

20

   

AND

C: WAM 

10

   

5

   

5

   

5

   

10 

15

   

SUBTOTAL 

40

   

OR

D: JAZZ 

11 

10

   

12 

5

   

13 

5

   

14 

5

   

15 

15

   

SUBTOTAL 

40

   

OR

E: IAM 

16 

10

   

17 

5

   

18 

5

   

19 

5

   

20 

15

   

SUBTOTAL 

40

   
 

GRAND TOTAL 

120

   

QUESTIONS 

SECTION A: THEORY OF MUSIC (COMPULSORY) (90 minutes) 
Answer QUESTION 1  
AND QUESTION 2.1 OR 2.2  
AND QUESTION 3.1 OR 3.2  
AND QUESTION 4.1 OR 4.2. 
Answer the questions in the spaces provided on this question paper. QUESTION 1 (25 minutes) 
Study the extract below and answer the questions that follow. 

 Schuber
t2621 loijajkh

1.1 Name the main key of this piece. ______________________________________________ (1)
1.2 Name the intervals at 1.2.1 and 1.2.2 according to type and distance.

1.2.1 ______________________________________________ 

1.2.2 ______________________________________________ (2) 

1.3 Write and name the inversion of the interval at 1.3.   _______________________ (1)
263
1.4 Name the triads at 1.4.1 and 1.4.2 according to type and position/inversion. 

1.4.1 _____________________________________________

1.4.2  ______________________________________________ (2) 

1.5 Rewrite bar 1 of the violin part for viola using the same pitch.  
264 1.5(2) 
1.6 Transpose the bass part from bars 7–10 a perfect fourth higher.  Do NOT use a key signature. 
265 1.6(2) 
1.7 Rewrite bar 1 of the right-hand part of the piano in compound time.  Add the new time signature. 
266 1.7(2)
1.8 Write the scales below as indicated. Use semibreves. 

1.8.1 Write F# melodic minor, ascending and descending, with key  signature. Mark the semitones. 
267 1.8.1(3) 
1.8.2 Write the Aeolian mode on E, descending in the alto clef.  
Do NOT use a key signature. 
268 1.8.2(2)
1.8.3 Write a chromatic scale on Bb, ascending only. 
269 1.8.3(3)

[20]

QUESTION 2 (25 minutes)
Answer EITHER QUESTION 2.1 OR QUESTION 2.2. 
2.1 Complete the opening motif below to form a twelve-bar melody in ternary form  for any single-line melodic instrument of your choice. Name the instrument for  which you are writing. Indicate the tempo and add dynamic and articulation  marks. 

Instrument: _________________________ 

Tempo: _________________________ 

270 kjuhakj
The melody will be marked according to the following criteria: 

DESCRIPTION 

MARK  ALLOCATION

CANDIDATE'S MARKS

Form and cadential points 

3

 

Correctness 
Note stems, beats per bar, accidentals,  spacing, layout

2

 

Quality 
Suitability, dynamics, articulation,  tempo indication, musicality

10

 

TOTAL 

15

 

[15] 

OR
2.2 Complete the opening motif below to form a twelve-bar melody in ternary form  for any single-line melodic instrument of your choice. Name the instrument for  which you are writing. Indicate the tempo and add dynamic and articulation  marks. 
Instrument: ________________________ 

Tempo: _________________________ 

271 kjlhskjh
The melody will be marked according to the following criteria: 

DESCRIPTION 

MARK  ALLOCATION

CANDIDATE'S  MARKS

Form and cadential points 

3

 

Correctness 
Note stems, beats per bar, accidentals,  spacing, layout

2

 

Quality 
Suitability, dynamics, articulation, tempo  indication, musicality

10

 

TOTAL 

15

 

[15]

QUESTION 3 (10 minutes)
Answer EITHER QUESTION 3.1 OR QUESTION 3.2. 
3.1 Study the extract by Mendelssohn below and answer the questions that  follow.

272 jhgajh
3.1.1 Name the key of this extract. 
___________________________________________________ (1) 
3.1.2 Identify chords (a)–(e) and figure them on the score. Use EITHER  figuring below the score, for example V6, OR chord symbols above  the score, for example C/E. (5) 
3.1.3 Name the types of non-chordal notes at (i) and (ii).  

  1. __________________________________________________
  2. __________________________________________________ (2) 

3.1.4 Which ONE of the following do you associate with the note at Z?  Make a cross (X) in the appropriate block. (1) 

Anticipation 

Suspension 

Appoggiatura 

Chord note 

3.1.5 Name the cadence with which this extract ends. 
_____________________________________________________ (1)

[10] 

OR
3.2 Study the extract from Till by Charles Danvers below and answer the  questions that follow. 
3.2.4 MUSIC SHEET
3.2.1 Name the key of this extract. 
___________________________________________ (1) 
3.2.2 Identify the chords from (a) to (e) and figure them on the score.  Use chord symbols above the score, for example Bb/D. (5) 

3.2.3 Name the types of non-chordal notes at (i)–(iii). 

  1. _________________________________________________
  2. _________________________________________________
  3. _________________________________________________ (3)

3.2.4 Name the cadence at the end of this extract. 
__________________________________________________ (1)

[10]

QUESTION 4 (30 minutes)
Answer EITHER QUESTION 4.1 OR QUESTION 4.2. 
4.1 Complete the four-part vocal harmonisation below by adding the alto, tenor  and bass parts.  

273 khakjh
The harmonisation will be marked according to the following criteria: 

DESCRIPTION 

MARK  ALLOCATION

CANDIDATE'S MARKS

Chord progression 

Choice of chords, correct use of cadence 

14

 

Correctness 

Notation, doubling, spacing, voice leading 

16

 

Quality 

Musicality, non-chordal notes, awareness of  style, creativity

10

 
 

40 

(÷ 8 x 3)

 

TOTAL 

15

 

[15] 

OR
4.2 Complete the piece below by adding a suitable bass line and harmonic  material in the open staves. Continue in the style suggested by the given  material in bars 1–4.
274 keithe

The harmonisation will be marked according to the following criteria: 

DESCRIPTION 

MARK  ALLOCATION

CANDIDATE'S  MARKS

Chord progression 
Choice of chords, correct use of cadence 

15

 

Correctness 
Notation, doubling, spacing, voice leading 

15

 

Quality 
Musicality, non-chordal notes, awareness  of style, creativity

10

 
 

40 

(÷ 8 x 3)

 

TOTAL 

15

 

[15] 
TOTAL SECTION A: 60

 

SECTIONS B, C, D, E: GENERAL MUSIC KNOWLEDGE (90 minutes) 
Answer SECTION B  
AND SECTION C (Western Art Music) 
OR SECTION D (Jazz) 
OR SECTION E (Indigenous African Music).  
Answer these questions in the ANSWER BOOK provided. 
SECTION B: GENERAL (COMPULSORY) 
QUESTION 5  
5.1 Various options are provided as possible answers to the following questions.  Write down the question number (5.1.1–5.1.10), choose the answer and make  a cross (X) over the letter (A–D) of your choice in the ANSWER BOOK. 

EXAMPLE: 

5.1.11 EXAMPLE

5.1.1 Royalties paid to composers when their music is performed in public  are called … 

  1. copyright.
  2. performance rights.
  3. needletime rights.
  4. mechanical rights. 

5.1.2 Royalties paid to songwriters and performers for CD sales or digital  downloads are called … 

  1. copyright.
  2. performance rights.
  3. needletime rights.
  4. mechanical rights. 

5.1.3 SAMRO is the abbreviation for the … 

  1. South African Music Relevance Organisation.
  2. South African Music Rights Organisation.
  3. South African Music Recording Organisation.
  4. South African Music Restrictions Organisation. 

5.1.4 A person who writes the words of a song is a/an … 

  1. arranger.
  2. editor.
  3. lyricist.
  4. performer.

5.1.5 A musical work is copyrighted … 

  1. immediately after it has been composed.
  2. for 80 years after the work has been composed.
  3. until the year of the composer's death.
  4. only two weeks after it has been composed. 

5.1.6 The symbol above the given note is called a/an … 

  1. lower mordent.
  2. appoggiatura.
  3. upper mordent.
  4. turn. 

5.1.7 In a Dorian mode, semitones occur between the … 

  1. 3rd and 4th notes and the 6th and 7th notes. 
  2. 2nd and 3rd notes and the 7th and 8th notes.
  3. 3rd and 4th notes and the 7th and 8th notes.
  4. 2nd and 3rd notes and the 6th and 7th notes. 

5.1.8 Which ONE of the following means to become softer gradually?  

  1. Accelerando
  2. Morendo
  3. Crescendo
  4. Rallentando 

5.1.9 The musical term for is … 

  1. lungo.
  2. portato.
  3. fermata.
  4. staccato. 

5.1.10 The blues scale can be constructed by …. 

  1. lowering the 3rd, 5th and 7th degrees of the major scale.
  2. raising the 3rd, 5th and 7th degrees of the major scale.
  3. lowering the 3rd, 5th and 7th degrees of the minor scale.
  4. raising the 3rd, 5th and 7th degrees of the minor scale. (10 x 1) (10)

5.2 Give the correct term for any FIVE of the following descriptions. Write down  only the term next to the question number (5.2.1–5.2.8) in the ANSWER  BOOK. 

5.2.1 A musical texture consisting of a single melodic line 
5.2.2 A musical texture consisting of a melodic line with accompaniment
5.2.3 A musical texture consisting of several independent melodic lines 
5.2.4 A rhythmic pattern which repeats while other music material  changes around it 
5.2.5 Ancient scales with Greek names that are used in various music  styles 
5.2.6 The quality or colour of a voice or an instrument 
5.2.7 Vocal music without instrumental accompaniment 
5.2.8 The technical name for the third degree of a scale (5)

5.3 Write a paragraph in which you describe binary form. (5)

TOTAL SECTION B: 20

Answer SECTION C (WAM)  
OR SECTION D (JAZZ)  
OR SECTION E (IAM). 
SECTION C: WESTERN ART MUSIC (WAM)  
QUESTION 6 
6.1 Which characters are associated with the following voice types in The Magic  Flute by Mozart? 

6.1.1 Soprano 
6.1.2 Tenor 
6.1.3 Baritone 
6.1.4 Bass 
6.1.5 Coloratura (5)

6.2 The Magic Flute is considered to be a Singspiel. 
Write notes to substantiate this statement using examples from this opera. (5)

[10] 

QUESTION 7

Study the table below which represents sonata form and answer the questions  that follow. 

EXPOSITION 

DEVELOPMENT 

RECAPITULATION

7.1 In which section would one expect to find an episode? (1)
7.2 What is the function of the bridge in the exposition of this form? (1)
7.3 Briefly describe what happens in the development section. (2) 
7.4 How is the recapitulation different from the exposition? (1)

[5] 

QUESTION 8 
Write a paragraph on the final (fifth) movement of Beethoven's Symphony No. 6  in which you link the title of this movement to the programmatic content. [5]

QUESTION 9 
Define the Classical symphony and expain how Beethoven's Pastoral Symphony differs from the Classical symphonic model. [5] 

QUESTION 10 
Mendelssohn demonstrates both Classical and Romantic features in his Hebrides Overture.  
Write an essay in which you discuss this statement. 
You will be credited for the logical presentation of facts and the structure of your essay. The essay will be marked according to the following criteria: 

CRITERIA 

MARK ALLOCATION

Classical features 

6

Romantic features 

6

Logical presentation and structure of the essay 

3

TOTAL 

15 

[15] 
TOTAL SECTION C: 40 

OR

SECTION D: JAZZ 
QUESTION 11 
11.1 Describe prominent music characteristics of kwela. (3)
11.2 Name the instruments used in a typical mbaqanga band. (3) 
11.3 Write down the title of a song associated with EACH of the following  artists/groups: 

11.3.1  Dolly Rathebe 
11.3.2  Miriam Makeba 
11.3.3  Sakhile 
11.3.4  Philip Tabane (4)

[10] 

QUESTION 12  
Indicate whether the following statements concerning Cape jazz are TRUE or FALSE. Write down only 'true' or 'false' next to the question number (12.1–12.5) in the  ANSWER BOOK. 

12.1 It is inspired by blues and folk songs sung by descendants of the former slave  communities living in the Western Cape. 
12.2 It is influenced by the street carnival parade and instrumentation of the Mardi  Gras. 
12.3 It is a mixture of Xhosa and Zulu songs, as well as Latin-American styles.
12.4 It was originally mainly a piano jazz style. 
12.5 Robbie Jansen is a famous saxophone player who is linked to the  development of Cape jazz.

[5] 

QUESTION 13 
Discuss TWO international influences and TWO local influences on Miriam Makeba's  music style. Comment on her unique vocal style. [5] 

QUESTION 14 
Write a paragraph in which you discuss the importance of the Jazz Epistles in the  development of South African jazz. [5]

QUESTION 15 
Marabi is a true example of an early South African jazz style. 
Write an essay in which you expand on this statement by refering to the origins,  characteristics and music examples of marabi. 
You will be credited for the logical presentation of facts and the structure of your essay. The essay will be marked according to the following criteria: 

CRITERIA 

MARK ALLOCATION

Origins 

5

Characteristics 

5

Music examples 

2

Logical presentation and structure of the essay 

3

TOTAL 

15 

[15] 
TOTAL SECTION D: 40 

OR

SECTION E: INDIGENOUS AFRICAN MUSIC (IAM) 
QUESTION 16 
16.1 Indicate whether the following statements are TRUE or FALSE. Write only  'true' or 'false' next to the question number (16.1.1–16.1.4) in the ANSWER  BOOK. If the statement is FALSE, write down the correct information. 

16.1.1 Isicathamiya was popularised internationally by Ladysmith Black  Mambazo's collaboration with Simon and Garfunkel. 
16.1.2 Julian Bahula played drums for Sello Galane. 
16.1.3 Mahotella Queens is a group that sings free kiba. 
16.1.4 The Manhattan Brothers was a kwela group. (4)

16.2 Define malombo. (2)
16.3 Define the following terms associated with maskandi: 

16.3.1 Ikati 
16.3.2 Ukupika (4)

[10] 

QUESTION 17  
Write a paragraph in which you define and describe free kiba. Refer to the traditional  drums used in this style of music. [5] 

QUESTION 18 
Briefly discuss ONE of the following ceremonies. Refer to the function, ceremonial  features and the role of dance, music and instruments. 

  • AmaZulu: Amahubo 
  • AmaSwati: Incwala 
  • AmaXhosa: Intonjane 
  • AmaNdebele: Luma 
  • Basotho: Lebollo 
  • Bapedi: Byale 
  • Batswana: Bojale 
  • Vhavenda: Domba  
  • Batsonga: Mancomane [5]

QUESTION 19 
Discuss the features of praise poetry as used in African music. [5]

QUESTION 20 
Isicathamiya has become one of the most readily recognised South African music  genres of the late 20th and early 21st centuries. 
Write an essay in which you discuss this statement with specific reference to  Ladysmith Black Mambazo. 
You will be credited for the logical presentation of facts and the structure of your essay.
The essay will be marked according to the following criteria: 

CRITERIA 

MARK ALLOCATION

Origins 

3

Style characteristics 

5

Contribution of Ladysmith Black Mambazo 

4

Logical presentation and structure of the essay 

3

TOTAL 

15 

[15] 
TOTAL SECTION E: 40
GRAND TOTAL: 120

MUSIC
PAPER 2
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. This question paper consists of THREE sections:
    SECTION A: Aural (10)
    SECTION B: Recognition (12)
    SECTION C: Form (8)
  2. QUESTION 1, QUESTION 2, QUESTION 3 and QUESTION 7 are  COMPULSORY. 
  3. Answer QUESTION 4: Western Art Music (WAM) OR QUESTION 5: Jazz OR  QUESTION 6: Indigenous African Music (IAM).
  4. Write ALL your answers on this question paper. Use a pencil for music notation  and blue or black ink for the other answers.
  5. This examination will be written while candidates are listening to a CD. 6.
  6. The music teacher of the centre must conduct the examination in the presence  of the invigilator. 
  7. The last page of this question paper is manuscript paper intended for rough  work. The candidate MAY NOT remove this page.
  8. Candidates may NOT have access to any musical instrument for the duration of  this examination.
  9. Candidates must take note of the mark allocation at each question to provide  enough information in their answers.
  10. Write neatly and legibly.

INSTRUCTIONS TO THE PERSON OPERATING THE SOUND EQUIPMENT 

  1. The instructions for the music teacher appear in frames. 
  2. Each musical extract (track) must be played the number of times specified in  the question paper. 
  3. Allow adequate time between tracks to give candidates time to think and write  their answers before playing the next track.
  4. The number of the track must be announced clearly each time before it is  played. 
  5. If a school offers more than one stream, (Western Art Music (WAM), Jazz, Indigenous African Music (IAM), the following guidelines must be followed:
    • Each stream must write the examination in a separate venue.
    • Each venue must be equipped with suitable sound equipment.
    • Each venue must have its own CD with musical extracts.
    • An invigilator must be present in each venue.
  6. The tracks have to be played as follows:
    • WAM candidates: Tracks 1–19 and Tracks 33–36
    • Jazz candidates: Tracks 1–13, Tracks 20–23 and Tracks 33–36
    • IAM candidates: Tracks 1–13, Tracks 24–32 and Tracks 33–36 
  7. A battery-powered CD player must be available in case of a power failure.

SUMMARY OF MARKS

SECTION A: AURAL 

TOTAL

QUESTION 1 (COMPULSORY) 

4

QUESTION 2 (COMPULSORY) 

6

SUBTOTAL 

10

SECTION B: RECOGNITION 

TOTAL

QUESTION 3 (COMPULSORY) 

4

QUESTION 4 (WAM) OR 

8

QUESTION 5 (JAZZ) OR 

8

QUESTION 6 (IAM) 

8

SUBTOTAL 

12

SECTION C: FORM 

TOTAL

QUESTION 7 (COMPULSORY) 

8

SUBTOTAL 

8

GRAND TOTAL 

30

QUESTIONS  

SECTION A: AURAL 
QUESTION 1 

Play Track 1 TWICE in succession.

1.1 Listen to the melodic and rhythmic phrase. Notate the rhythm of the missing  notes in bars 3–4 below. 

111(3) 

Play Track 1 TWICE again.

Play Track 2 THREE times in succession.

1.2 Which ONE of the extracts below best represents the solo violin part? Make a  cross (X) in the appropriate block. 
1.2(1) 

[4] 

Play Track 2 ONCE more.

QUESTION 2 

Play Track 3 ONCE to provide a general overview.

Listen to the extract from Menuet in G by Mozart. Answer the questions that follow.
260 lkjaljknhd

Play Track 4 TWICE.

2.1 The notation of bars 23b–42 has been omitted at 2.1 in the score. Fill in the  missing pitches on the score that correspond to the music that you hear. (3) 

Play Track 5 ONCE.

2.2 Name the cadence at (a) in bars 73–82. (The track starts in bar 1.) (1) 

Play Track 6 ONCE.

2.3 Listen to the music in bars 83–122. Which compositional technique is used  at (b)? (The track starts in bar 83.) (1) 

Play Track 7 TWICE.

2.4 Complete the missing bass notes at (c) on the score. (The track starts in  bar 123.) (1)

[6] 

Play Track 8 for a final overview.

TOTAL SECTION A: 10

SECTION B: RECOGNITION OF MUSIC CONCEPTS 
QUESTION 3: GENERAL LISTENING (COMPULSORY) 
Listen to the following tracks and answer the questions that follow. 

Play Track 9 ONCE.

3.1 Listen to the music and indicate ONE feature that you hear. Make a cross (X)  in the appropriate block. 

Pesante 

Orchestra 

Pizzicato 

String ensemble 

(1) 

Play Track 10 TWICE.

3.2 Choose any ONE item in COLUMN A and briefly describe what you hear in  COLUMN B. 

COLUMN A 

COLUMN B DESCRIPTION

Tonality

 

Vocal technique

 

Voice type 

 

(1) 

Play Track 11 TWICE.

3.3 Choose any TWO items in COLUMN A and briefly describe what you hear in  COLUMN B. 

COLUMN A 

COLUMN B DESCRIPTION

Compositional technique

 

Harmony

 

Time signature 

 

(2)

Play Tracks 12 and 13 in succession.

3.4 In Tracks 12 and Track 13 you will hear TWO different performances of the  same piece. Compare these two extracts in terms of the following: 

ELEMENT 

COMPARISON

Track 12 

Track 13

Instrumentation

   

Texture

   

Style

   

Use of rhythm

   

(4) 
(8 ÷ 2) [4]

Answer QUESTION 4 (WAM) OR QUESTION 5 (JAZZ) OR QUESTION 6 (IAM).
QUESTION 4: WAM 
4.1 Listen to the following extract and answer the questions that follow. 

Play Track 14 ONCE.

4.1.1 Name the work from which this extract has been taken. 
____________________________________________________ (1) 
4.1.2 Identify the tonality of this extract. Make a cross (X) in the  appropriate block. 

Chromatic 

Modal 

Major 

(1) 

Play Track 15 ONCE.

4.1.3 Describe the melodic line. (2) 
4.1.4 Identify the cadence at the end of this extract. (1) 
4.2 Listen to the extract from Mozart's The Magic Flute in Track 16 and answer  the questions that follow. 

Play Track 16 TWICE.

4.2.1 Name the character who sings in this extract. (1) 
4.2.2 What does this character represent in the opera? (1) 
4.2.3 Name the voice type that you hear in this extract. (1) 
4.2.4 Suggest a suitable Italian tempo indication for this extract. (1)
4.2.5 Where in the opera is this extract sung? (1) 
4.2.6 Describe what is happening in the storyline at this point. (1) 

4.3 Listen to the extract from Beethoven's Symphony No. 6 in Track 17 and  answer the questions that follow. 

Play Track 17 ONCE.

4.3.1 Choose the term that refers to this extract. Make a cross (X) in the  appropriate block. (1) 

Tutti 

Ostinato 

Attacca 

Melisma 

 

Play Track 18 ONCE.

4.3.2 Name the woodwind instrument which plays the high-pitched  melodic fragment in this extract. (1) 
4.3.3 From which movement of the Symphony No. 6 by Beethoven has  this extract been taken? (1) 

Play Track 19 TWICE.

4.4 Describe TWO style characteristics that you hear in this extract. (2) 

(16 ÷ 2) [8] 
TOTAL SECTION B: 12 

OR
QUESTION 5: JAZZ 
5.1 Listen to the extracts below and answer the questions that follow. 

Play Track 20 TWICE.

5.1.1 With which of the following styles would you associate this extract?  Make a cross (X) in the appropriate block.  (1) 

Kwela 

Cape jazz 

Modern jazz 

5.1.2 Identify the piece in this extract. (1) 
5.1.3 Name TWO artists that are associated with the music style in this  extract. (2) 
5.1.4 Identify TWO idiophones that are part of the rhythm section in the  music in this extract. (2) 

5.2 Listen to the Track 21 and answer the questions that follow. 

Play Track 21 TWICE.

5.2.1 Identify the jazz style in this extract. (1) 
5.2.2 Give reasons, related to the music, for your answer to  QUESTION 5.2.1. (3) 
5.2.3 Which jazz artist from the 1950s had an influence on this type of  jazz? (1)

5.3 Listen to Track 22 and answer the questions that follow. 

Play Track 22 TWICE.

5.3.1 Give reasons why you would regard the extract as a typical Cape  jazz piece. (3) 

Play Track 23 ONCE.

5.3.2 Describe the style of saxophone-playing in your own words. (2) 

(16 ÷ 2) [8] 

OR
QUESTION 6: IAM 
6.1 Listen to the extracts below and answer the questions that follow. 

Play Track 24 ONCE.

6.1.1 Identify the style of music in this extract. (1) 

Play Track 25 THREE times in succession.

6.1.2 Choose the order in which the instruments appear. Make a cross (X)  in the appropriate block.  (1) 

INSTRUMENT ORDER

                                                                          

Drums/Percussion, piano, bass guitar

 

Drums/Percussion, bass guitar, piano

 

Drums/Percussion, piano and bass guitar 

 

 

Play Track 26 ONCE.

6.1.3 What is the role of the female voices in this song? (1) 
6.1.4 What typical African compositional technique is heard in this  extract? (1) 
6.2 Listen to the following TWO tracks which will be played in succession and  answer the questions that follow. 

Play Track 27 and Track 28 ONCE in succession.

6.2.1 The TWO extracts have a similar purpose or function. Explain the  purpose or function of the music in these two extracts. (2) 
6.2.2 Indicate ONE group associated with Track 27. Make a cross (X) in  the appropriate block.  (1)

ZCC 

Amazayoni 

Apostolic Church 

Shembe 

Play Track 29 ONCE.

6.2.3 Describe the use of rhythm in the membranophones. (1) 

Play Track 30 ONCE.

6.2.4 Describe the texture of this song. (1) 
6.3 Listen to the extract below and answer the questions that follow. 

Play Track 31 THREE times.

6.3.1 With what indigenous South African music style would you  associate this extract? (1) 
6.3.2 Which music performance characteristics heard in this extract, are  common to the style of music in QUESTION 6.3.1? (3)

Play Track 32 ONCE.

6.4 Identify the style of music in this extract. Give TWO reasons for your answer.
Style:  
Reasons: (3) 

(16 ÷ 2) [8] 
TOTAL SECTION B: 12

SECTION C: FORM 
QUESTION 7  
Read and study the questions for ONE minute. 

Play Track 33 ONCE to provide an overview.

Listen to the following piece while you study the score.
258 lknaljkn
259 lknakj

Play Track 33 again.

7.1 What is the overall form of this piece? (1)  
7.2 Motivate your answer to QUESTION 7.1 by giving a schematic layout of the  form of this piece. Use the table below.  (3) 

SECTION 
(for example C)

BAR NUMBERS 
(for example 91–222)

   
   
   
   

7.3 Name the key of this piece. (1) 
7.4 Choose the term that describes the mood of this piece. Make a cross (X) in  the appropriate block.  (1) 

Affettuoso 

Giocoso 

Maestoso 

Mosso 

Play Track 34 TWICE.

7.5 Which compositional technique is used in bars 31–32? (The track starts  in bar 31.) (1) 

Play Track 35 TWICE.

7.6 Write down an Italian term which describes what happens to the tempo in  bar 34. (The track starts in bar 33.) (1) 

[8] 

Play Track 36 for a final overview.

TOTAL SECTION C: 8 
GRAND TOTAL: 30

MUSIC
PAPER 2
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. This question paper consists of THREE sections:
    SECTION A: Aural (10)
    SECTION B: Recognition (12)
    SECTION C: Form (8)
  2. QUESTION 1, QUESTION 2, QUESTION 3 and QUESTION 7 are  COMPULSORY. 
  3. Answer QUESTION 4: Western Art Music (WAM) OR QUESTION 5: Jazz OR  QUESTION 6: Indigenous African Music (IAM).
  4. Write ALL your answers on this question paper. Use a pencil for music notation  and blue or black ink for the other answers.
  5. This examination will be written while candidates are listening to a CD. 6.
  6. The music teacher of the centre must conduct the examination in the presence  of the invigilator. 
  7. The last page of this question paper is manuscript paper intended for rough  work. The candidate MAY NOT remove this page.
  8. Candidates may NOT have access to any musical instrument for the duration of  this examination.
  9. Candidates must take note of the mark allocation at each question to provide  enough information in their answers.
  10. Write neatly and legibly.

INSTRUCTIONS TO THE PERSON OPERATING THE SOUND EQUIPMENT 

  1. The instructions for the music teacher appear in frames. 
  2. Each musical extract (track) must be played the number of times specified in  the question paper. 
  3. Allow adequate time between tracks to give candidates time to think and write  their answers before playing the next track.
  4. The number of the track must be announced clearly each time before it is  played. 
  5. If a school offers more than one stream, (Western Art Music (WAM), Jazz, Indigenous African Music (IAM), the following guidelines must be followed:
    • Each stream must write the examination in a separate venue.
    • Each venue must be equipped with suitable sound equipment.
    • Each venue must have its own CD with musical extracts.
    • An invigilator must be present in each venue.
  6. The tracks have to be played as follows:
    • WAM candidates: Tracks 1–19 and Tracks 33–36
    • Jazz candidates: Tracks 1–13, Tracks 20–23 and Tracks 33–36
    • IAM candidates: Tracks 1–13, Tracks 24–32 and Tracks 33–36 
  7. A battery-powered CD player must be available in case of a power failure.

SUMMARY OF MARKS

SECTION A: AURAL 

TOTAL

QUESTION 1 (COMPULSORY) 

4

QUESTION 2 (COMPULSORY) 

6

SUBTOTAL 

10

SECTION B: RECOGNITION 

TOTAL

QUESTION 3 (COMPULSORY) 

4

QUESTION 4 (WAM) OR 

8

QUESTION 5 (JAZZ) OR 

8

QUESTION 6 (IAM) 

8

SUBTOTAL 

12

SECTION C: FORM 

TOTAL

QUESTION 7 (COMPULSORY) 

8

SUBTOTAL 

8

GRAND TOTAL 

30

 

Note to the marker: Candidates must be credited for any correct answers not given in  the memorandum.

MEMORANDUM

SECTION A: AURAL 
QUESTION 1 

Play Track 1 TWICE in succession.

1.1 Listen to the melodic and rhythmic phrase. Notate the rhythm of the missing  notes in bars 3–4 below. 

Play Track 1 TWICE again.

Answer: 
254 kjhadhs(3) 

½ mark per note as indicated = 3 marks

 

Play Track 2 THREE times in succession.

1.2 Which ONE of the extracts below best represents the solo violin part? Make a  cross (X) in the appropriate block. 

X(1) 

[4] 

Play Track 2 ONCE more.

 

Correct answer = 1 mark

QUESTION 2 

Play Track 3 ONCE to provide a general overview.



Listen to the extract from Menuet in G by Mozart. Answer the questions that follow.
255 meneguet

Play Track 4 TWICE.

2.1 The notation of bars 23b–42has been omitted at 2.1 in the score. Fill in the  missing pitches on the score that correspond to the music that you hear. 
Answer: 
256 lkjalkj   (3) 

½ mark for each correct pitch = 6 X ½= 3 marks 

Play Track 5 ONCE.

2.2 Name the cadence at (a) in bars 73–82. (The track starts in bar 1.)
Answer: 

  • Perfect (cadence) (1) 

1 mark 

 

Play Track 6 ONCE.

2.3 Listen to the music in bars 83–122. Which compositional technique is used  at (b)? (The track starts in bar 83.) 
Answer: 

  • Sequence
  • Rhythmic repetition  (1) 

Any correct answer = 1 mark 

Play Track 7 TWICE.

2.4 Complete the missing bass notes at (c) on the score. (The track starts in  bar 123.) 
257 poklkjzhnkjd
Answer:  (1) 

½ mark for each correct pitch = 1 mark 

[6] 

Play Track 8 for a final overview. 

TOTAL SECTION A: 10

SECTION B: RECOGNITION OF MUSIC CONCEPTS 
QUESTION 3: GENERAL LISTENING (COMPULSORY) 
Listen to the following tracks and answer the questions that follow. 

Note to marker: if a candidate selected more than one item in a question, only the  first item must be marked.

 

Play Track 9 ONCE.

3.1 Listen to the music and indicate ONE feature that you hear. Make a cross (X)  in the appropriate block. 
Answer: 

  • String ensemble  (1) 

1 mark 

Play Track 10 TWICE.

3.2 Choose any ONE item in COLUMN A and briefly describe in COLUMN B what  you hear. 
Answer: 

COLUMN A 

COLUMN B DESCRIPTION

Tonality 

Major 

Vocal technique 

Scatting (vocal nonsense-syllable singing)/  vocal improvisation/vocalise

Voice type 

Female voice/alto 

 

Correct answer = 1 mark 

(1) 

Play Track 11 TWICE.

3.3 Choose any TWO items in COLUMN A and briefly describe in COLUMN B what you hear. 
Answer: 

COLUMN A 

COLUMN B DESCRIPTION

Compositional technique 

Call and response/Imitation/Repetition

Harmony 

Repeated pattern

Time signature 

4/4 or 2/2

 

Correct answers = 2 marks 

(2)

Note to marker: if a candidate selected more than two items, only the first two items  must be marked.

Play Tracks 12 and 13 in succession.

3.4 In Tracks 12 and 13 you will hear TWO different performances of the same  piece. Compare these two extracts in terms of the following: 
Answer:  (4) 

 

Track 12 

Track 13

Instrumentation 

Harpsichord 

Piano, drums, bass

Texture 

Polyphonic 

Polyphonic

Style 

Baroque 

Jazz

Use of Rhythm 

Straight 

Swing 

1 correct answer per comparison = 1 mark No ½ marks

(8 ÷2) (4) 
TOTAL SECTION B: 4

Answer QUESTION 4 (WAM) OR QUESTION 5 (JAZZ) OR QUESTION 6 (IAM).
QUESTION 4: WAM 
4.1 Listen to the following extract and answer the questions that follow. 

Play Track 14 ONCE.

4.1.1 Name the work from which this extract has been taken. 
Answer: 

  • Hebrides Overture 
  • Fingal's Cave  (1) 

Any correct answer = 1 mark 

4.1.2 Identify the tonality of this extract. Make a cross (X) in the  appropriate block. 
Answer: 

  • Major  (1) 

1 mark 

Play Track 15 ONCE.

4.1.3 Describe the melodic line. 
Answer: 

  • Legato/Smooth/Flowing 
  • Cantabile/in a singing style/Lyrical
  • Rapid crescendos and decrescendos 
  • Constant ascending and descending line
  • Played by cello section   (2) 

Any 2 correct answers = 2 marks 

4.1.4 Identify the cadence at the end of this extract. 
Answer: 

  • Perfect cadence   (1)

1 mark 

4.2 Listen to the extract from Mozart's The Magic Flute in Track 16 and answer  the questions that follow. 

Play Track 16 TWICE.

4.2.1 Name the character who sings in this extract. 
Answer: 

  • Sarastro   (1) 

1 mark 

4.2.2 What does this character represent in the opera? 
Answer:  

  • Goodness
  • Fatherhood
  • Reverence  (1) 

Any correct answer = 1 mark 

4.2.3 Name the voice type that you hear in this extract. 
Answer: 

  • Bass   (1) 

1 mark 

4.2.4 Suggest a suitable Italian tempo indication for this extract. 
Answer: 

  • Adagio
  • Largo  (1) 

Any 1 suitable Italian term = 1 mark 

4.2.5 Where in the opera is this extract sung? 
Answer: 

  • Act 2 
  • Before Tamino is subjected to the trials  (1) 

Any correct answer = 1 mark 

4.2.6 Describe what is happening in the storyline at this point. 
Answer: 

  • Sarastro sings of the ideals of the Brotherhood after Pamina  pleads for mercy for her mother, the Queen
  • Sarastro makes a plea to the Egyptian gods to assist Tamino  during his trials ∙  (1)

Any correct answer = 1 mark 

4.3 Listen to the extract from Beethoven's Symphony No. 6 in Track 17 and  answer the questions that follow. 

Play Track 17 ONCE.

4.3.1 Choose the term that refers to this extract. Make a cross (X) in the  appropriate block. 
Answer:  

  • Tutti  (1) 

1 mark 

Play Track 18 ONCE.

4.3.2 Name the woodwind instrument which plays the high-pitched  melodic fragment in this extract. 
Answer: 

  • Flute (1) 

1 mark 

4.3.3 From which movement of the Symphony No. 6 by Beethoven has  this extract been taken? 
Answer: 

  • First movement  (1) 

1 mark 

Play Track 19 TWICE.

4.4 Describe TWO style characteristics that you hear in this extract. 
Answer: 

  • Homophonic texture 
  • Regular phrasing 
  • Clear-cut cadences
  • Melodic motifs used abundantly
  • Concerto genre used (oboe and strings)  (2) 

Any 2 correct answers = 2 marks 

(16 ÷ 2) [8] 
TOTAL SECTION B: 12 

OR
QUESTION 5: JAZZ 
5.1 Listen to the extracts and answer the questions that follow. 

Play Track 20 TWICE.

5.1.1 With which of the following styles would you associate this extract?  Make a cross (X) in the appropriate block. 
Answer: 

  • Modern jazz  (1) 

1 mark 

5.1.2 Identify the piece in this extract 
Answer: 

  • Shebeen (by Hugh Masekela & The Union of South Africa)  (1) 

1 mark 

5.1.3 Name TWO artists that are associated with the music style in this  extract. 
Answer: 

  • Hugh Masekela (Trumpet)
  • Jonas Gwangwa (Trombone) 
  • Caiphus Semenya (Alto saxophone)  

Any 2 correct artists = 2 marks

OR 

  •  Hugh Masekela and The Union of South Africa  (2) 

Answer = 2 marks 

5.1.4 Identify TWO idiophones that are part of the rhythm section in the  music in this extract. 
Answer: 

  • Shakers
  • Cow bell
  • Cymbals 
  • Tambourine  (2)

Any 2 correct answers = 2 marks 

5.2 Listen to the extract in Track 21 and answer the questions that follow. 

Play Track 21 TWICE.

5.2.1 Identify the jazz style in this extract. 
Answer: 

  • Kwela  (1) 

1 mark 

5.2.2 Give reasons, related to the music, for your answer to  QUESTION 5.2.1. 
Answer:  

  • Cyclic chord structure 
  •  Solo player with band
  • Lively tempo 
  • Skiffle-like beat
  • Jive/Swing rhythms
  • Melodic material developed in improvisation 
  • Pennywhistle   (3) 

Any 3 correct answers = 3 marks 

5.2.3 Which jazz artist from the 1950s had an influence on this type of  jazz? 
Answer: 

  • Spokes Mashiyane 
  • Lemmy Mabaso 
  • Elias Lerole  (1)

Any 1 correct artist = 1 mark 

5.3 Listen to the extract in Track 22 and answer the questions that follow. 

Play Track 22 TWICE.

5.3.1 Give reasons why you would regard the extract as a typical Cape  jazz piece. 
Answer: 

  • Rhythmic characteristics of amaXhosa music
  • Ghoema beat 
  • Marching and Christmas band harmonies 
  • Banjo and guitar rhythms from Kaapse Klopse 
  • Specific playing style of piano
  • Saxophone produces melody in a nasal tone with vibrato at the  end of phrases 
  • Characteristics of Khoi-San mouth bow evident  (3)

1 mark for each correct answer up to 3 marks 

Play Track 23 ONCE.

5.3.2 Describe the style of saxophone playing in your own words.
Answer: 

  • It plays the melody 
  • Uses a scooping performance technique
  • Plays in the middle register 
  • Nasal tone colour used 
  • Vibrato at the end of phrases  (2) 

Any 2 correct answers = 2 marks 

(16 ÷ 2) [8] 
TOTAL SECTION B: 12 

OR

QUESTION 6: IAM 
6.1 Listen to the extracts and answer the questions that follow. 

Play Track 24 ONCE.

6.1.1 Identify the style of music in this extract. 
Answer: 

  • Free Kiba
  • Malombo
  • African Jazz  (1) 

Any correct answer = 1 mark 

Play Track 25 THREE times in succession.

6.1.2 Choose the order in which the instruments appear. Make a cross  (X) in the appropriate block. 
Answer: 

Instrument order

                           

Drums/Percussion, piano, bass guitar 

 

Drums/Percussion, bass guitar, piano 

x

Drums/Percussion, piano and bass guitar

 

Correct answer = 1 mark 

(1) 

Play Track 26 ONCE.

6.1.3 What is the role of the female voices in this song? 
Answer:  

  • Backing vocals
  • Response to the 'call' of leader (male) 
  • Fills in the harmony  (1) 

Any correct answer = 1 mark 

6.1.4 What typical African compositional technique is heard in this  extract? 
Answer: 

  • Call and response (1)

1 mark 

6.2 Listen to the following TWO tracks which will be played in succession and  answer the questions that follow. 

Play Track 27 and Track 28 ONCE in succession.

6.2.1 The TWO extracts have a similar purpose or function. Explain the  purpose and function of the music in these two extracts. 
Answer: 

  • Religious or sacred purpose
  • Ritualistic
  • Communication with Ancestors/God
  • Relate to African divinity  (2) 

Any 2 correct answers = 2 marks 

6.2.2 Indicate ONE group associated with Track 27. Make a tick (X) in  the appropriate block. 

ZCC 

Amazayoni 

Apostolic Church 

Shembe

Answer: 

  • Amazayoni  (1) 

1 mark 

Play Track 29 ONCE.

6.2.3 Describe the use of rhythm in the membranophones. 
Answer: 

  • Polyrhythms
  • Syncopation
  • Repetitive  (1) 

Any correct answer = 1 mark 

Play Track 30 ONCE.

6.2.4 Describe the texture of this song. 
Answer: 

  • Overlapping voices 
  • Call and response  (1)

Any correct answer = 1 mark 

Play Track 31 THREE times.

6.3 Listen to the extract below and answer the questions that follow. 
6.3.1 With what indigenous South African music style would you  associate this extract? 
Answer: 

  • Isicathamiya  (1) 

1 mark 

6.3.2 Which music performance characteristics heard in this extract, are  common to the style of music in 6.3.1? 
Answer: 

  • Overlapping voices 
  • Male choir/ensemble
  • Use of falsetto 
  • Repetitive cyclic harmonic progressions  (3) 

1 mark for each correct answer up to a maximum of 3 marks 

Play Track 32 ONCE.

6.4 Identify the style of music in this extract. Give TWO reasons for your answers. 
Answer: 

  • Style: Mbaqanga 

Reasons:  

  • Small ensemble of players 
  •  Use of repetitive guitar melodic riffs 
  •  Interweaving electric guitar lines repeated throughout
  • Guitar introduction 
  • Guitar strings have a soft tone quality on electric guitar
  • R&B fused with the cyclic structure of Marabi 
  • Emphasis on off-beats typical of the style  (3) 

Mbaqanga = 1 mark Reasons: Any 2 correct answers = 2 marks 

(16 ÷ 2) [8] 
TOTAL SECTION B: 12

SECTION C: FORM 
QUESTION 7  
Read and study the questions for ONE minute. 

Play Track 33 ONCE to provide an overview.

Listen to the following piece while you study the score.
258 lknaljkn
259 lknakj

Play Track 33 again.

7.1 What is the overall form of this piece? 
Answer: 

  • Ternary form 
  •  ABA   (1) 

Any correct answer = 1 mark 

7.2 Motivate your answer to QUESTION 7.1 by giving a schematic layout of the  form of this piece. Use the table below. 
Answer: 

Section 

Bar numbers 

Marks

A ½ (including Introduction) or 

A ½

1–20 ½ 

or 

5–20 ½

= 1 mark

B ½ 

21–34 ½ 

= 1 mark

A ½ 

35–52 ½ 

= 1 mark

Cadence extension (part of A) 

50–52

 

½ mark for each correct section = 1½ marks 

½ mark for each correct set of bar numbers = 1½ marks 

(3) 
7.3 Name the key of this piece. 
Answer: 

  • A minor  (1) 

1 mark 

7.4 Choose the term that describes the mood of this piece. Make a cross (X) in  the appropriate block. 
Answer: 

  • Affettuoso  (1) 

1 mark 

Play Track 34 TWICE.

7.5 Which compositional technique is used in bars 31–32? (The track starts in  bar 31.) 
Answer: 

  • Imitation/Repetition of a three- note motive an octave higher   (1)

1 mark 
Merely imitation/repetition = ½ mark 

Play Track 35 TWICE.

7.6 Write down an Italian term which describes what happens to the tempo in  bar 34. (The track starts in bar 33.) 
Answer: 

  • Ritardando
  • Rallentando   (1) 

Any correct answer = 1 mark 

[8] 

Play Track 36 for a final overview. 

TOTAL SECTION C: 8 
GRAND TOTAL: 30

   MUSIC
PAPER 1
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

INSTRUCTIONS AND INFORMATION 

  1. This question paper consists of FIVE sections, namely SECTIONS A, B, C, D  and E. 
  2. SECTIONS A and B are COMPULSORY.
  3. SECTION C: WESTERN ART MUSIC (WAM), SECTION D: JAZZ and  SECTION E: INDIGENOUS AFRICAN MUSIC (IAM) are choice questions.  Answer only ONE of these sections (SECTION C or D or E).
  4. Write all music notation in SECTION A in pencil and all written text in blue or  black ink on this question paper.
  5. Answer SECTION B and SECTION C or D or E in blue or black ink in the  ANSWER BOOK provided.
  6. Number the answers correctly according to the numbering system used in this  question paper.
  7. The last page of this question paper is manuscript paper intended for rough  work. Candidates may remove this page.
  8. Candidates may NOT have access to any musical instrument for the duration  of this examination.
  9. Candidates must take note of the mark allocation for each question to provide  enough information in their answers.
  10. Write neatly and legibly.

MEMORANDUM 

MARKING GRID

SECTION 

QUESTION 

MARKS 

MARKER 

MODERATOR

A: THEORY OF MUSIC (COMPULSORY)

20

   

15

   

10

   

15

   

SUBTOTAL 

60

   

AND

B: GENERAL  

(COMPULSORY)

20

   

SUBTOTAL 

20

   

AND

C: WAM 

10

   

5

   

5

   

5

   

10 

15

   

SUBTOTAL 

40

   

OR

D: JAZZ 

11 

10

   

12 

5

   

13 

5

   

14 

5

   

15 

15

   

SUBTOTAL 

40

   

OR

E: IAM 

16 

10

   

17 

5

   

18 

5

   

19 

5

   

20 

15

   

SUBTOTAL 

40

   
 

GRAND TOTAL 

120

   

SECTION A: THEORY OF MUSIC (COMPULSORY) (90 minutes) 
Answer QUESTION 1  
AND QUESTION 2.1 OR 2.2  
AND QUESTION 3.1 OR 3.2  
AND QUESTION 4.1 OR 4.2. 
Answer the questions in the spaces provided on this question paper.
QUESTION 1 (25 minutes) 
Study the extract below and answer the questions that follow. 

  Schuber
t241 shubert

1.1 Name the main key of this piece. 
Answer: 

  • D minor  (1) 

D minor = 1 mark 

1.2 Name the intervals at 1.2.1 and 1.2.2 according to type and distance. Answer: 

1.2.1 Compound major 3rd/Major 10th  
1.2.2  Minor 6th  (2)

Compound major 3rd/Major 10th = 1 mark
 Minor 6th  = 1 mark
(No ½ marks) 

1.3 Write and name the inversion of the interval at 1.3. 
Answer: 

242 jkhk answers

  •  Minor 7th  (1) 

Minor 7th= ½ mark
Notation = ½ mark 

1.4 Name the triads at 1.4.1 and 1.4.2 according to type and position/inversion.
Answer: 

1.4.1  Minor – second inversion 
1.4.2  Major – root position  (2) 

Minor = ½ mark 
Second inversion= ½ mark
Major = ½ mark 
Root position = ½ mark 

1.5 Rewrite bar 1 of the violin part for viola using the same pitch. 
                              ½             ½  
243 1.5 kjhak  (2)

Clef = 1 mark 
Notation = 2 x ½ mark as indicated 

1.6 Transpose the bass part from bars 7–10 a perfect fourth higher.  Do NOT use a key signature. 
Answer: 
244 1.6 mnab (2) 

Notation = ½ mark per bar = 2 marks 

1.7 Rewrite bar 1 of the right-hand part of the piano score in compound time. Add the new time signature. 
Answer:  
 ½ ½  
245 kjnbkjha  (2) 

Time signature = 1 mark 

Notation = 2 x ½ mark as indicated 

1.8 Write the scales below as indicated. Use semibreves. 
1.8.1 Write F# melodic minor, ascending and descending, with key  signature. Mark the semitones. 
Answer: 
246 klnzjhn  (3) 

General assessment = 3 marks
Minus ½ mark per error

1.8.2 Write the Aeolian mode on E, descending in the alto clef.  
Do NOT use a key signature. 
Answer: 
247 jhbs  (2) 

Clef = 1 mark
Notation = 1 mark
(Minus ½ mark per error up to a maximum of 1 mark)  

1.8.3 Write a chromatic scale on Bb, ascending only. 
Answer: 248 jnskj
 (3) 

General assessment = 3 marks
Minus ½ mark per error 

[20]

QUESTION 2 (25 minutes)
Answer EITHER QUESTION 2.1 OR QUESTION 2.2. 
2.1 Complete the opening motif below to form a twelve-bar melody in ternary form  for any single-line melodic instrument of your choice. Name the instrument for  which you are writing. Indicate the tempo and add dynamic and articulation  marks. 
Concept answer: 
Instrument: Violin/Clarinet 
                   Andante 
249 mnjjs
OR 

2.2 

Concept answer: 
Instrument: Cello/Trombone/Bassoon/Double Bass/Bass Guitar 
 Andante
250 kjhskjhb

The melody will be marked according to the following criteria:

DESCRIPTION 

MARK ALLOCATION

Form and cadential  points 

1 mark per phrase x 3 

3

Correctness 
Note stems, beats per bar,  accidentals, spacing,  layout

Minus ½ mark per error up to 2 marks 

2

Quality 

  • Quality of melody and  suitability for chosen  instrument
  • Appropriateness of  tempo, articulation and  dynamic indications 
  • Musicality

9–10

Excellent 
Coherent and musical; phrases imaginatively  define the form; opening motif innovatively  continued; successful use of tonality; melodic  shape masterfully handled; creative approach to  choice of pitches and rhythm

10

7–8

Good 
Correct and musical; phrases clearly indicate the  form; opening motif sensibly continued; stable  tonality; melodic shape satisfying; choice of  pitches and rhythm accurate

4–6

Average 
Musically not convincing; not all phrases clear;  opening motif not well utilised; tonality unstable;  melodic shape is suspect; choice of pitches and  rhythm unimaginative 

0–3

Not acceptable 
No musical sense; no sense of phrasing; opening  motif ignored; no sense of tonal centre; no  melodic shape; pitches and rhythm random

TOTAL 

Markers may use ½ marks 

15

QUESTION 3 (10 minutes)
Answer EITHER QUESTION 3.1 OR QUESTION 3.2.
3.1 Study the extract by Mendelssohn below and answer the questions that  follow. 
Answer: 

251 lkkjiajhnk

3.1.1 Name the key of this extract. 
Answer: 

  • G major  (1) 

G major = 1 mark 

3.1.2 Identify the chords from (a)–(e) and figure them on the score.  Use EITHER figuring below the score, for example V6, OR chord  
symbols, for example C/E above the score. 
Answer: 

  • See score  (5) 

1 mark per chord = 5 marks 
(Minus ½ mark for each error) 
(Key indication not compulsory) 
Markers should mark either chord symbols (above) or figuring (below);  not a mixture. 

3.1.3 Name the types of non-chordal notes at (i) and (ii).  
Answer: 

  1. Passing note 
  2. (Upper) Auxiliary   (2) 

(i) Passing note = 1 mark 
(ii) (Upper) auxiliary = 1 mark 

3.1.4 Which ONE of the following do you associate with the note at Z?  Make a cross (X) in the appropriate block. 

Anticipation 

Suspension 

Appoggiatura 

Chord note

Answer:(1) 

Anticipation = 1 mark

3.1.5 Name the cadence with which this extract ends. 
Answer: 

  • Imperfect (cadence)   (1) 

Imperfect cadence = 1 mark  (No marks if only chords are given) 

[10] 

OR
3.2 Study the extract from Till by Charles Danvers below and answer the  questions that follow. 
Answer: 

252 lkjajhd
                                                                                                             3.2.4  Imperfect cadence

3.2.1 Name the key of this extract. 
Answer: 

  • F major  (1) 

F major = 1 mark 

3.2.2 Identify the chords from (a) to (e) and figure them on the score.  Use chord symbols above the score, for example Bb/D 
Answer: 

  • See score  (5) 

1 mark per chord = 5 marks 
(Minus ½ mark for each error) 
Roman numerals will not be accepted 

3.2.3 Name the type of non-chordal notes at (i)–(iii). 
Answer: 

  1. (Chromatic lower) Auxiliary
  2. Suspension
  3. Anticipation  (3) 

(i) (Chromatic lower) Auxiliary = 1 mark 
(ii) Suspension = 1 mark 
(iii) Anticipation = 1 mark 
(No ½ marks) 

3.2.4 Name the cadence at the end of this extract. 
Answer: 

  • Imperfect (cadence)  (1) 

Imperfect = 1 mark 

[10]

QUESTION 4 (30 minutes)
Answer EITHER QUESTION 4.1 OR QUESTION 4.2. 
4.1 Complete the four-part vocal harmonisation below by adding the alto, tenor  and bass parts.  
Concept answer: 

253 kjgahb

The harmonisation will be marked according to the following criteria: 

DESCRIPTION 

MARK ALLOCATION 

CANDIDATE'S  MARKS

Chord progression 
Choice of chords, correct use of cadence

1 mark between each pair of chords  (except between bar 5 and 6)

14

 

Correctness 
Notation, doubling,  spacing, voice leading

Minus ½ mark per error but not more  than 1 mark per chord 

16

 

Quality 
Musicality, non-chordal  notes, awareness of  style, creativity

  • Excellent = 9–10 marks 
  • Good = 7–8 marks 
  • Average = 5–6marks 
  • Weak = 3–4 marks 
  • Unacceptable = 0–2 marks

10

 
 

Note to marker:  
Mark out of 40 must not contain  a ½ mark

40 

(÷ 8 x 3)

 

TOTAL 

 

15

 

Candidates must be credited for an alternative and correct harmonisation not given in  the memorandum. The figuring serves as a guide for the marker, but no marks are  allocated for the symbols as such.

[15]

OR
4.2 Complete the piece below by adding a suitable bass line and harmonic  material in the open staves. Continue in the style suggested by the given  material in bars 1–4. 
Concept answer:
4.2

The harmonisation will be marked according to the following criteria: 

DESCRIPTION 

MARK ALLOCATION 

CANDIDATE'S  MARKS

Chord progression 
Choice of chords, correct use of cadence

1 mark between each pair of chords 

15

 

Correctness 
Notation, doubling,  spacing, voice leading

Minus ½ mark per error but not more  than 1 mark per chord 

15

 

Quality 
Musicality, non-chordal  notes, awareness of  style, creativity

  • Excellent = 9–10 marks
  • Good = 7–8 marks
  • Average = 5–6 marks
  • Weak = 3–4 marks 
  • Unacceptable = 0–2 marks

10

 
 

Note to marker:  
Mark out of 40 must not contain  a ½ mark

40 

(÷ 8 x 3)

 

TOTAL 

 

15

 

Candidates must be credited for an alternative and correct harmonisation not given in the  memorandum. The figuring serves as a guide for the marker, but no marks are allocated  for the symbols as such. 

TOTAL SECTION A: 60

SECTIONS B, C, D, E: GENERAL MUSIC KNOWLEDGE (90 minutes) 
Answer SECTION B  
AND SECTION C (Western Art Music) 
OR SECTION D (Jazz) 
OR SECTION E (Indigenous African Music). 
Candidates must answer these questions in the ANSWER BOOK provided. 

Note to the marker: One mark will be allocated for each correct fact. Candidates must  be credited for any correct answer not given in this memorandum. 

SECTION B: GENERAL (COMPULSORY) 
QUESTION 5  
5.1

5.1.1 B 
5.1.2 D 
5.1.3 B 
5.1.4 C 
5.1.5 A 
5.1.6 C 
5.1.7 D 
5.1.8 B 
5.1.9 C 
5.1.10 A  (10) 

1 mark for each correct answer = 10 marks 

5.2

5.2.1 Monophony 
5.2.2 Homophony 
5.2.3 Polyphony 
5.2.4 Ostinato 
5.2.5 Modes 
5.2.6 Tone colour/Timbre 
5.2.7 A Cappella 
5.2.8 Mediant  (5) 

Any 5 correct answers = 5 marks 

 

If candidate answers more than 5 questions, mark ONLY THE FIRST 5  answers

5.3

  • Divided into two sections/AB
  • Section A usually starts in the tonic key
  • Modulates to the dominant (or to the relative major if tonic was a minor  key) 
  • Section B starts in the new key and modulates back to the tonic
  • Both sections contain repeat signs
  • The music material is similar in both sections
  • Phrases are usually symmetrical  (5) 

Any 5 correct facts = 5 marks 

TOTAL SECTION B: 20

Answer SECTION C (WAM)  
OR SECTION D (JAZZ)  
OR SECTION E (IAM). 
SECTION C: WESTERN ART MUSIC (WAM)  
QUESTION 6 

Note to the marker: One mark will be allocated for each correct fact. Candidates must be  credited for any correct answer not given in this memorandum.

6.1

6.1.1 Pamina/Papagena 
6.1.2  Tamino 
6.1.3  Monostatos/Papageno 
6.1.4  Sarastro 
6.1.5  Queen of the Night (5) 

Each correct answer = 1 mark 

6.2

  • Has a German text throughout 
  • Includes a spoken dialogue
  • Arias are often simply strophic or folk-like (Papageno's song)
  • The plot contains
    • Comical elements (Papageno)
    • Romantic elements (Tamino and Pamina) 
    • Fairytale elements (Rescue of a Princess) 
    • Magical and fantasy elements (Magic flute/Magic bells)
    • Characterisations of good and evil (Sarastro/Queen of the Night) (5)  [10] 

Any 5 correct facts = 5 marks 

QUESTION 7 
7.1 Development (1) 

Correct answer = 1 mark

7.2 To facilitate the modulation from Theme 1 to Theme 2. 
(Major tonic to dominant/Minor tonic to relative major) (1) 

Correct answer = 1 mark 

7.3

  • The music modulates to various keys 
  • Music material from the exposition is varied using different compositional  devices 
  • New material may be included (2) 

Any 2 correct answers = 2 marks 

7.4

  • Both Themes of the Recapitulation are in the tonic key
  • Exposition ends with codetta in dominant key and Recapitulation ends with  Coda in tonic key (1)  [5]

Any correct answer = 1 mark 

QUESTION 8 
Title given by Beethoven to describe the programmatic content. 

Hirtengesang. Frohe, dankbare Gefühle nach dem Sturm,
or 
Shepherds' song. Feelings of joy and gratitude after the Storm,
or 
Herderslied, Vrolike en dankbare gevoelens na die Storm 

Any one answer = 1 mark

Programmatic content realised through music: 

  • a portrayal of calmness, a general feeling of relief after the storm
  • brings us back to the pastoral nature of the first movement 
  • pastoral mood created by yodelling figure/a shepherd's pipe is heard on clarinet;  this is answered by another (horn), and then another call (violin)
  • starts with a gentle, lyric theme followed by more vigorous sections

Tempo: Allegretto – reinforces pastoral association 
Key: F major – tonic key of work helps to establish the return of pastoral mood
Harmony: Simple harmony/tonal stability to set a relaxed, easy-going atmosphere
Time signature: 6/8 – lilting, relaxed mood [5] 

Any 4 correct facts = 4 marks 

QUESTION 9 
Definition: orchestral work usually in four movements 

Orchestral work = ½ mark 
Four movements = ½ mark

Explanation of differences: 

Classical Symphony 

Beethoven: Pastoral Symphony

Four movements 

Five movements

Standard Classical orchestra 

Standard Classical orchestra with additional piccolo and  trombone

Modulation to relative keys 

Modulation to relative keys and modulation to distantly  related keys 

Absolute music 

Programmatic

No titles 

Titles for each movement

Classical forms: e.g. sonata form, sonata  rondo

Fourth movement is in episodic/free form

More limited range of tone colour 

Expanded range of tone colour 

Coda not developed 

Coda expanded  

Almost a new development

Fourth movement: mostly in rondo or  sonata or sonata-rondo form, in the tonic  key and has a fast tempo

Fourth movement in episodical/free form 
Fifth movement corresponds more to the final  movement in the standard classical structure and  moderately fast tempo

[5]

Any 4 correctly correlated facts = 4 marks 
(e.g. Four movements vs Five movements) = 1 mark 

QUESTION 10 
Classical Features 
Form and structure: 

  • Uses Sonata form  

Tone Colour/Instrumentation:  

  • Standard classical orchestra 

Melodic Material:  

  • Motivic development 
  • Clearly defined melodies 

Harmony:  

  • Modulations to relative keys
  • Strongly influenced by Mozart and Beethoven 
  • Use of tonal/classical harmony  

Texture:  

  • Mainly homophonic with some polyphonic texture 

Any 6 correct facts = 6 marks

Romantic Features 
Form and structure: 

  • Uses Sonata form but more free and varied e.g. unusual long codetta after the  second subject in the exposition 

Programmatic:  

  • Use of descriptive title and subtitle 
  •  Romanticism brought through a new focus on nature 
  •  Suggests a whole seascape, the grandeur of the cave, the swelling of the sea, the  light on the water, the fury of the waves breaking on the cliffs
  • One of the first Romantic compositions to suggest nature in this way

New genre:  

  • Concert Overture (foreshadowing the Tone Poem to come) 

Dynamics:  

  • Very wide range from pp to ff
  • Tempo and Rhythm:
  • Extensive use of rubato 

Melody: 

  • Lyrical melodies with an individual melodic style (especially in the second subject)

Harmony:  

  • Some use of chromatic harmony 

Any 6 correct facts = 6 marks

CRITERIA 

MARK ALLOCATION

Classical features 

1 mark for each correct fact 

6

Romantic features 

1 mark for each correct fact 

6

Logical presentation and  structure

Excellent 
An introduction, conclusion, with a  substantial argument in the body of essay  evident.

= 3 marks

3

Good 
An introduction, conclusion, with a  reasonable argument in the body of essay  evident.

= 2 marks

Average 
An introduction, conclusion, with an  insignificant argument in the body of essay  evident.

= 1½ marks

Below average 
An introduction, conclusion with a weak  argument in the body of essay evident.

= 1 mark

Weak 
A single paragraph: A poor attempt at an  essay.

= ½ mark

Not acceptable 
Only facts in bullet form.

= 0 marks

TOTAL 

 

15 

[15] 
TOTAL SECTION C: 40 

OR

SECTION D: JAZZ 
QUESTION 11 
11.1

  • Contrapuntal melodies and weaving of different melody lines together 
  • Melody developed through improvisation 
  • Solo pennywhistle (or saxophone) plays melody 
  • Moderate to upbeat tempo
  • Skiffle-like beat
  • Jive/Swing rhythms  (3) 

Any 3 correct facts = 3 marks 

11.2

  • Electric guitar 
  •  Bass guitar 
  • Drums 
  • Keyboard/Organ (3) 

Any 3 correct answers = 3 marks 

11.3

11.3.1Meadowlands 
11.3.2 Pata Pata or Lakutshon'ilanga 
11.3.3 Sakhile or Isililo 
11.3.4 Khoedi (The Moon)  (4) 

Any four correct answers = 4 marks 
Note to the marker: 
Any other correct answer can also be accepted. 

[10] 

QUESTION 12  

12.1 

TRUE

12.2 

TRUE

12.3 

FALSE

12.4 

FALSE

12.5 

TRUE

[5]

5 correct answers = 5 marks 

QUESTION 13 
International: 

  • Combined and blended different styles 
    • Jazz
    • Blues
    • R&B 
    • Contemporary folk 
    • Gospel 
    • English ballads 
    • Portuguese fados 
    • Yiddish folk melodies 
    • Commercial popular music
    • Recordings of American jazz artists, e.g. Ella Fitzgerald 

Local: 

  • Traditional songs of the Xhosa and Zulu languages
  • Explosive, clicking sounds of her mother tongue: isiXhosa 
  • Uses a cappella healing chants of the Amasangoma 

Vocal quality: 

  • Rich, low female voice often compared in quality to Ella Fitzgerald's [5] 

Any 2 correct international,2 local and 1 quality fact = 5 marks 

QUESTION 14 

  • South Africa's first important bebop band in the 1950s
  • Band consisted of South African jazz-icons (Dollar Brand (later Abdullah Ibrahim)  on piano, Kippie Moeketsi on alto saxophone, Jonas Gwangwa on trombone, Hugh  Masekela on trumpet, Johnny Gertze on bass, Early Mabuza or Makaya Ntshoko  on drums)
  • Started a particularly South African sound which individual artists developed over  the following decades 
  • 1959: First album by a black South African band, Jazz Epistle, Verse 1
  • 1959: The musicians were involved in the popular South African jazz musical,  King Kong which toured overseas
  • Many of these musicians chose exile and developed their style further through  contact with European musicians. They ploughed back their new-found knowledge  and skills into the South African context on their return  [5]

Any 5 correct facts = 5 marks 

QUESTION 15 
Origins 

  • Started: 1920 in Johannesburg (Sophiatown)
  • Ticky-draai (Cape folk dance) 
  • Xhosa folk songs 
  •  Early American jazz 
  • Ragtime 
  • Blues music (12 bar blues) 
  • Music at parties of urban working class African musicians 
  • Used for social occasions, e.g. stokvel parties
  • Music used at shebeens for entertainment  

Any 5 facts for 5 marks

Characteristics 

  • Primarily a keyboard style 
  • Other characteristic instruments include: simple pedal organ, guitar, banjo, drum  (self-made), percussion, e.g. shakers
  • Small instrumental ensemble 
  • Cyclic chord progression: I – IV ––164 ––V
  • Rearranged traditional melodies in a three-chord pattern
  • Moderate to upbeat tempo and rhythm
  • Repetitive, single-themed dance tunes  

Any 5 facts for 5 marks

Any artist and song  

  • Jazz Maniacs: Gully Low Blues
  • The Manhattan Brothers: Jikela Emaweni
  • The Flying Jazz Queens: Langa More

Any 1 artist and 1 song = 2 marks

The essay will be marked according to the following criteria: 

CRITERIA 

MARK ALLOCATION

Origins 

1 mark for each correct fact 

5

Characteristics 

1 mark for each correct fact 

5

Artist and song 

1 mark for each correct fact 

2

Logical presentation  and structure of the essay

Excellent 
An introduction, conclusion, with a  substantial argument in the body of  essay evident.

= 3 marks

3

Good 
An introduction, conclusion, with a  reasonable argument in the body of  essay evident.

= 2 marks

Average 
An introduction, conclusion, with an  insignificant argument in the body of  essay evident.

= 1½ marks

Below average 
An introduction, conclusion with a weak  argument in the body of essay evident.

= 1 mark

Weak 
A single paragraph: A poor attempt at  an essay.

= ½ mark

Not acceptable 
Only facts in bullet form. 

= 0 marks

TOTAL 

 

15 

[15] 
TOTAL SECTION D: 40 

OR

SECTION E: INDIGENOUS AFRICAN MUSIC (IAM) 
QUESTION 16 
16.1

16.1.1 False - with Paul Simon (1)
16.1.2 False - Malombo/Philip Tabane/Malombo Jazzmen (1)
16.1.3 False - Mbaqanga (1)
16.1.4 False - Marabi (1) 

16.2

  • A style of music that fuses Bapedi and Vhavenda music with jazz
  • African rhythms provided by the malombo and bongo drums 
  • An interplay between drums, guitar and flute (2) 

Any 2 correct facts = 2 marks 

16.3
16.3.1

  • Ikati: plectrum used for guitar playing 
    • Ikati produces a percussive sound typical of the style
    • Ukuvamba refers to strumming of chords percussively with  plectrum 

16.3.2

  • Ukupika: picking of guitar strings with fingers
    • Amadoda (thumb) plays the lower strings
    • Amantombazane (rest of the fingers) play the melody on the  upper strings (4) 

2 correct facts for each = 4 marks 

[10] 

QUESTION 17  

  • A modern version/construct of the Bapedi music/dance kiba
  • Uses modern instruments instead of traditional Bapedi instruments
  • Uses any African language in addition to Sepedi 
  • Not exclusive to any cultural group
  • Performed over a standard contemporary drumbeat style (e.g. disco, jazz)
  • Merges drum melo-rhythms with pluro-vocal responses, crepitations and vocal  lilting
  • The following traditional drums are used: Ditinti; Moropa wa diatla/Moropa; Kiba [5]

Any 5 correct facts = 5 marks 

QUESTION 18 
AmaZulu: Amahubo 
Ceremonial features/functions: 

  • Channel communication between the ancestors and community 
  •  Used to please the ancestors
  • Serves to strengthen identity of the clan
  • Only performed by elders of a clan
  • Only wives who have passed menopause are allowed at the performance
  • Performed at important rituals e.g. preparing for war 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Amahubo are clan anthems (sacred songs)
  • Overlapping call and response is characteristic of the music
  • Leading part is usually a solo voice and response is done by the chorus
  • Listeners participate in the amahubo with emotional responses evoked by the  performer
  • Each clan has its own Ihubo
  • Use of body percussion 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

[5] 

OR 

AmaSwati: Inkwahla 
Ceremonial features/functions: 

  • First fruits celebration
  • The Inkwahla songs are reserved only for the Inkwahla ceremony and the death of  a king
  • It is a sacred celebration that reinforces the king's role in the Swazi nation
  • Core function is to spiritually cleanse the King and his nation before they eat newly  harvested crops
  • In the opening of the ceremony, the community chants the Inkwahla songs,  standing in a formation of a crescent moon
  • Lyrics of the songs are usually mournful and moving
  • In the second phase, young unmarried men gather at the king's home to create an  enclosure with branches from a sacred tree, Lusekwane 
  • During the closing ceremony, the community gathers in full moon formation and  chants the Inkwahla with great solemnity

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • On the first day priests go into the sea, singing and dancing Inkwahla songs/dances, as they fill calabashes with water that will be used to cleanse the  king
  • On their return they sing the king's praises (Izibongo)
  • On the second day young men sing a lullaby as they cut the Lusekwane branches  to prepare for the king's re-birth
  • During the ceremony warriors hold their shields and women hold thin long wands,  waving them in time to the rhythm of the Inkwahla song 
  • Young unmarried men beat their shields against their sides in a steady rhythm  likened to a mother rocking her baby
  • The Umgubo, which is regarded as the national anthem, is performed to praise the  king and end the day's activities 
  • Use of voice and body percussion, also includes shields and sticks 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

[5] 

OR 

AmaXhosa: Intonjane 
Ceremonial features/functions: 

  • Seclusion period during female initiation
  • One main song/dance is performed - Umngqungqo
  • The Umngqungqo is performed by married women
  • The song/dance is performed outdoors 
  • The women hold sticks in their right hands while dancing to imitate the men
  • Umngqungqo music/dance lasts for 2 days
    • Thereafter the men perform the Umdudo dance which lasts up to six days 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Two main dance movements, both characterised by walking, swaying and  balancing on the ball of the foot then stomping the heel down are performed in a  circle
    • In the first movement they move clockwise, then change direction
    • In the second movement they face inwards
  • Dancers move with grace, shaking their shoulders 
  • Vocal parts are largely improvised
  • There are no instruments, only the clapping of hands
  • The Umdudo dance opens with the singing of Umyeyezelo and the beating of the  Ingqongqo drum 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

[5] 

OR

AmaNdebele: Luma 
Ceremonial features/functions: 

  • First fruits celebration
  • The community gathers at the king's home in February to celebrate the Ndebele  heritage and welcome in the new year
  • It is believed that the performance enables people to cast spells
  • The performance of the song is strictly forbidden during any other time except the  Luma celebration
  • The Luma is believed to bring a sense of well-being in the nation 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Song/Dance used to rejoice and praise the king
  • A special royal praise-song is performed (Luma song)
  • The song is believed to bring rain
  • The Luma song/dance is used to pray for fertility for crops
  • Use of voice, dance and body percussion 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks

[5] 

OR 

Basotho: Lebollo 
Ceremonial features/functions: 

  • Seclusion period during male initiation
  • Males learn cultural values through Likoma (songs)
  • The Likoma are imparted by mentors – usually older initiated males
  • In some clans each initiate has his own mentor to teach him Likoma
  • The Likoma are secret (performed privately where only initiates are present)
  • Likoma are chanted slowly in a low-pitched voice and accompanied by dance
  • The leader of the initiates composes the songs 
  • Through the Likoma, the adult's identity is reinforced

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • While the initiates go through the pain of circumcision, they sing Mokorotlo songs to  reinforce their masculinity
    • Their cries are drowned by these songs
  • When the initiation is complete, the boys sing Mangae songs in public to show pride  in their new status as men
  • The Mangaye songs are composed by the newly initiated men and give them the  opportunity to express their thoughts and feelings
  • At the graduation each initiate recites Dithoko (praise songs)
    • This symbolises the boys entry into adulthood
    • Use of voice and movement 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

[5] 

OR 

Bapedi: Byale 
Ceremonial features/functions: 

  • Seclusion period during female initiation
  • Before initiation a girl goes into seclusion for a week to undergo puberty rites
  • At the end of the seclusion period the girl embarks on a period of preparation where  she is taught initiation songs 
  • Musical instruments are used to embody spirits and to simulate animals and spirits
  • Every morning the Byale form an S-shaped line and perform a song/dance with  slow movement
  • Mime is used to learn behaviour that is expected from the Byale as women and  duties they will have to perform as adults
  • The Byale create songs based on small models of animals they make to represent  different human qualities 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Every night during the seclusion week, women gather in the initiates' hut for  dancing, singing and drumming to prepare the girl for initiation
  • Dances are characterised by movements representing the development of the child  in the womb
  • Songs characterised by singing in unison with rhythm created by plucking their lips  with fingers
  • The Byale's passage to a secluded spot in the mountain where the initiation will take  place is marked by the eerie sound of a drum (Moshupiane) [5]
  • The drum is played by an older woman, but the Byale are not allowed to see her or  know the source of the sound 
  • The sound of the drum resembles a lion's roar
    • It also symbolises the spirits of the mountain that will guard the Byale (initiates)  during this period 
  • A drum (Moropa) is beaten throughout the night by older women during the initiation  period to ensure strangers don't come near the initiation school 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks

OR

Batswana: Bojale 
Ceremonial features/functions: 

  • Seclusion period during female initiation 
  • Rite of passage among the Batswana people
  • Introduces the initiates to basic values of their society 
  • The Bojale is done when girls reach puberty
  • Girls are trained on what female duties entail
  • Most initiation music has an educational function 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Bonwale (female initiates) participate in musical activities throughout the initiation  period
  • They have to memorise the secret formulae (Rupa) which they chant
  • The main performance of initiation is the Radikgaratlane dance
  • On the last night of initiation the Bonwale perform the Thojane dance
  • When the girls return home they greet their families with songs (Mekgolokwane)
  • A common concern with most female initiation songs is to discourage young girls  from getting pregnant before marriage
    • The Mekgolokwane songs are homecoming songs, but the dance could refer to the  last days of pregnancy when a woman can't walk properly  [5] 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

OR 
Vhavenda: Domba 
Ceremonial features/functions: 

  • Seclusion period during female initiation
  • It is held throughout the year to accommodate the three phases of initiation – Vhusha, Tshikanda and Domba
  • During the first two phases of Domba, singing and dancing take place mainly in the  chief's huts
  • The volume of the music is a reflection of a chief's prestige and wealth
  • During Domba all instrumental music is banned in order to emphasize the  sacredness of the ritual 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • In the first phase the initiates spend most of the time rehearsing the Ndayo dances o The learn by imitating the older girls
  • There are special songs to mark rituals, such as the removal of each girl from their  home
  • During the final phase of Domba, the initiates learn the Tshikanda for a full month
  • The most distinctive feature of the Domba is the python dance (Domba)
  • The python symbolises fertility
  • The initiates also learn the myth of Thovhela and Tshishongwe which they enact  using music, dance and drama
    • This teaches them moral ethics
  • The Ngoma drum, reserved only for sacred rituals, is played during initiation  [5] 

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

OR

Batsonga: Mancomane 
Ceremonial features/functions: 

  • Exorcism ritual
  • Exorcism takes place nightly during summer 
  • The ritual takes its name from the Ncomane drum which is the defining feature of  the exorcism
  • Patients are individuals who have been possessed by unwanted Zulu or Ndau  spirits
  • The Dzwavi (diviner) possesses a set of four drums
  • The drums are a symbol of the Dzwavi's authority
  • They produce a sharp, powerful sound and are instrumental in inducing a hypnotic  state in the patient. 

Any 2 correct facts = 2 marks

Role of dance, music and instruments: 

  • Three drum rhythms are used to expel different evil spirits: Mandlozi for Zulu spirits  and Xidzimba and Xindau for Ndau spirits
  • The drums are beaten with a stick (Rikhokho) very close to the patient's ear
  • This is to create a disturbing sound for the spirits
  • They are usually played with the Ngoma bass drum adopted from the Vhavenda
  • Hand rattles (Njele) are also shaken and dancers wear leg-rattles (Marhonge)
    • They are thought to be a source of the Batsonga ancestral spirits
  • The songs used are in the language of the spirit being expelled
  • Songs consist of repetition of short vocal refrains with melodies that have a  persistent character
  • Singing contributes to the hypnotic, trance-like state of the patient
    • The audience can also go into a trance as a result of the singing  [5]

Any 3 correct facts = 3 marks 2 + 3 = 5 marks 

QUESTION 19 

  • Used to affirm ancestry
  • Used to relate stories about the clan
  • Often interwoven into a song
  • Usually at a fast tempo
  • Usually dramatic and energetic delivery
  • Often performed by mature men
  • Used during different celebrations
  • Chiefs/Kings have their own personal praise poet (5) 

Any 5 correct facts = 5 marks 

[5] 

QUESTION 20 
Origins: 

  • Imbube choral singing is the basis of this style 
  • Fuses both African traditional singing and Western church hymns
  • Originates from the Zulu word 'cothoza' – to walk on one's toes lightly
  • Migrant workers established the style
    • to entertain themselves 
    • to create a sense of community in their living areas 
  • Informal practices of migrant workers developed into performances
  • Music performances at 
    • music competitions
    • weddings and other celebrations 

Any 3 facts for 3 marks

Style characteristics: 

  • All-male choirs
  • Usually a cappella
  • Lyrics of songs in isiZulu
  • Multi-layered vocal texture 
  • Often songs are in call and response, with the leader (Tenor 1) calling
  • TTBB is used with one voice (leader) singing an extra tenor part
  • Simple chord progressions sung in close harmony 
  • In the contemporary context Isicathamiya is fused with popular music ∙ Includes a smooth and quiet dance style with very subtle movements

Any 5 facts = 5 marks

Contribution of Ladysmith Black Mambazo: 

  • Accessibility to a wider audience through:
    • Collaboration with well-known artists (Paul Simon on his Graceland album)
    • Recordings with the SABC and Gallo 
    • Winning many awards (e.g. Grammy Awards)
    • Having appeared with Michael Jackson
    • Popularising Isicathamiya internationally
    • Use of English in the lyrics 
  •  Joseph Shabalala emphasised accuracy of rhythm and pitch through quieter and  lush harmonies in contrast to the louder styles of the 1950s
  • Modified choreography to reflect the softer sound of tip-toeing through a  performance rather than stomping loudly on the ground
  • Founded The Ladysmith Black Mambazo Foundation with the aim to promote and  teach children about the history of Isicathamiya music
  • As a way of giving back to their community, Ladysmith Black Mambazo would hold  numerous workshops on Isicathamiya: 
    •  Resulting in a more polished tone in the upcoming groups
    • The overall quality of performance improved
  • Raised this art form to a new level 

Any 4 facts = 4 marks

The essay will be marked according to the following criteria: 

CRITERIA 

MARK ALLOCATION

Origins 

1 mark for each correct fact 

3

Style characteristics 

1 mark for each correct fact 

5

Contribution of  Ladysmith Black  Mambazo

1 mark for each correct fact 

4

Logical presentation  and structure of the essay

Excellent 
An introduction, conclusion, with a  substantial argument in the body of  essay evident.

= 3 marks

3

Good 
An introduction, conclusion, with a  reasonable argument in the body of  essay evident.

= 2 marks

Average 
An introduction, conclusion, with an  insignificant argument in the body of  essay evident.

= 1½ marks

Below average 
An introduction, conclusion with a weak  argument in the body of essay evident.

= 1 mark

Weak 
A single paragraph: A poor attempt at  an essay.

= ½ mark

Not acceptable 
Only facts in bullet form. 

= 0 marks

TOTAL 

 

15 

[15] 
TOTAL SECTION E: 40
GRAND TOTAL: 120

MECHANICAL TECHNOLOGY
GRADE 12 
NSC PAST PAPERS AND MEMOS
FEBRUARY/MARCH 2017

MEMORANDUM

QUESTION 1: MULTIPLE-CHOICE QUESTIONS 
1.1 B ✔ (1)
1.2 D ✔ (1)
1.3 C ✔ (1)
1.4 C ✔ (1)
1.5 B ✔ (1)
1.6 D ✔ (1)
1.7 A ✔ (1)
1.8 B ✔ (1)
1.9 A ✔ (1)
1.10 B ✔ (1)
1.11 B ✔ (1)
1.12 B ✔ (1)
1.13 D ✔ (1)
1.14 D ✔ (1)
1.15 A ✔ (1)
1.16 C ✔ (1)
1.17 A ✔ (1)
1.18 B ✔ (1)
1.19 B ✔ (1) 
1.20 A ✔ (1)

[20]

QUESTION 2: SAFETY 
2.1 Safety – Coil spring compressor: 

  • Make certain that the diameter of the compressor bolts can take the  pressure of the coil spring. ✔
  • Do not exceed the maximum pressure. ✔
  • Make sure the compressors are clean and free from oil. ✔
  • Ensure that the compressors are in a good working condition. ✔
    (Any 2 x 1) (2) 

2.2 Safety – Hydraulic Press: 

  • Take notice of the predetermined pressure of the hydraulic press. ✔
  • Ensure the pressure gauge is in a good working order. ✔
  • Platform on which the work piece rests must be rigid and square with the  cylinder of the press. ✔ 
  • The prescribed equipment must be used. ✔ 
  • Check for oil leaks. ✔
    (Any 3 x 1) (3) 

2.3 Safety – beam bender: 

  • Ensure the beam is clamped parallel to the backboard. ✔
  • Do not leave plastic beams loaded for any length of time, they tend to  creep. ✔
  • All the weight must be gently dropped onto the hanger as to reduce  inaccuracies due to friction. ✔ 
  • Do not exceed the tester's maximum load. ✔ 
  • Make sure the tester is stable. ✔
    (Any 2 x 1) (2) 

2.4 Testers: 
2.4.1 Brinell Tester: 

  • The tester must be mounted rigidly on a worktable. ✔ (1) 

2.4.2 Bearing and gear Puller: 

  • Make sure that the puller is at 90° to the work piece before you  start to pull. ✔
  • ∙ Ensure that the clamps are tight and will not slip from the work  piece. ✔
    (Any 1 x 1) (1) 

2.4.3 Torsion tester: 

  • Get specification (torsion) of the different materials and the  size of rods you would like to test. ✔ (1) 

[10]

QUESTION 3: TOOLS AND EQUIPMENT 
3.1 Fuel pressure: 

  • Faulty diaphragm ✔ 
  • Clogged fuel filter ✔
  • Faulty non return valves ✔ 
  • Worn gasket ✔ 
    (Any 2 x 1) (2) 

3.2 Precision measuring instruments: 
3.2.1 Depth micro-meter ✔ 

  • Vernier calliper ✔
    (Any 1 x 1) (1) 

3.2.2 Screw-thread micro-meter ✔ (1)  
3.3 Depth micro-meter reading: 

  • Reading = 50 + 1,5+ 0,49 ✔ 
    = 51,99 mm. ✔ (2) 

3.4 Multimeter measurements: 

  • DC current measurement ✔
  • DC voltage measurement ✔
  • AC measurement ✔ 
  • Resistance measurement ✔ 
  • Diode measurement ✔
  • Continuity measurement ✔
    (Any 2 x 1) (2) 

3.5 Trace the cylinder leakage in an engine: 

  • Listen to at the carburettor for a hissing noise. ✔ 
  • Listen at the exhaust pipe for a hissing noise. ✔ 
  • Listen for hissing noise in the dipstick hole. ✔ 
  • Listen to hissing noise by removing the filler cap on the tappet cover. ✔
  • By checking whether there are bubbles in the radiator water for blown  cylinder head gasket or cracked cylinder block. ✔
    (Any 2 x 1) (2) 

3.6 Uses of cooling pressure tester: 

  • To test if the pressure cap on the cooling system operates according to  the prescribed pressure of the system. ✔ 
  • To pump compressed air into the cooling system to determine whether  they are any water leakage in the system. ✔ (2)

[12]

QUESTION 4: MATERIALS 
4.1 Properties/characteristics: 
4.1.1 Cementite: 

  • Hard and brittle ✔✔ (2) 

4.1.2 Pearlite: 

  • Good ductility ✔ 
  • Very hard ✔ 
  • Strong and tough ✔ 
  • Resistance to deformation ✔
    (Any 2 x 1) (2) 

4.2 Iron –carbon equilibrium diagram 
4.2.1 Iron –carbon equilibrium diagram ✔ (1) 
4.2.2 

  1. – Ferrite + Pearlite ✔ 
  2. – Austenite + Ferrite ✔ 
  3. – Austenite ✔ 
  4. – Austenite + Cementite ✔ 
  5. – Ferrite + Cementite ✔ (5) 

4.2.3 Austenite: 

  • Soft, ✔ grain structure fine ✔ (2) 

4.3 720 °C ✔ (1)

[13]

QUESTION 5: TERMINOLOGY 
5.1 Indexing: 

  • Indexing = 40      ✔ 
                      n
    = 40 ÷ 2     ✔ 
      118   2
    = 20         ✔   (3) 
       59
    No fullturnsand 20 holes in a 59 -hole plate

5.2 Milling processes: 

  • Up-cut milling (2) 
    up cut milling
  • Downcut milling  (2) 
    down cut milling

5.3 Calculate: Gib head key:
5.3.1 

  • Width  =  
                   4
    = 102   ✔ 
         4
    = 25,5 mm   (2)   ✔ 

5.3.2 

  • Thickness   =  
                            6
    = 102   ✔ 
         6
    = 17 mm   (2)   ✔ 

5.3.3 

  • Length   = D × 1.5
    = 102  × 1.5 ✔ 
    = 153 mm   (2)   ✔ 

5.3.4 

  •  Thickness at smallend(t ) T = −    L    
                                                        100
    = 17 -  153    ✔ 
                100
    t = 17 - 1,53
    = 15,47 mm   (4)   ✔ 

5.4 Calculate – Spur gear: 
5.4.1

  • Addendum = m 
    = 3 mm ✔ (1) 

5.4.2

  • Dedendum = 1,157m      or        = 1,25m 
                        = 1,157 x 3 ✔         = 1,25 x 3 ✔
                         = 3,47 mm ✔         = 3,75 mm ✔ (2) 

5.4.3

  • Clearance = 0,157m            or             = 0,25m
                       = 0,157 x 3 ✔                    = 0,25 x 3 ✔
                       = 0,47 mm ✔                     = 0,75 mm ✔ (2) 

5.4.4 

  •  Module  = PCD
    T
    PCD = m × T ✔  
    = 3  ×  60
    = 180mm ✔(2) 

5.4.5 

  • OD = PCD + 2m 
    = 180 + 2(3) 
    = 180 + 6 ✔ 
    = 186 mm ✔ (2) 

5.4.6 

  • Cutting depth = 2,157 m             or                     = 2,25 m 
                          = 2,157 x 3 ✔                               = 2,25 x 3 ✔ 
                          = 6,47 mm ✔                                = 6,75 mm ✔ (2) 

5.4.7

  • Circular pitch = m x  π
    = 3 x  π ✔
    = 9,43 mm ✔ (2) 

[30]

QUESTION 6: JOINING METHODS 
6.1 Slag inclusion ✔ (1) 

6.2 Visual inspection defects 

  • Shape of profile ✔
  • Uniformity of surface ✔ 
  • Overlap ✔ 
  • Undercutting ✔ 
  • Penetration bead ✔ 
  • Root groove ✔ 
  • Crack free ✔
    (Any 4 x 1) (4) 

6.3 Causes of incomplete penetration: 

  • Weld speed too fast ✔ 
  • Joint design faulty ✔ 
  • Electrode too large ✔
  • Current too low ✔
    (Any 2 x 1) (2) 

6.4 Prevention of lack of fusion 

  • Adjust electrode size ✔ 
  • Correct preparation of joint ✔ 
  • Correct weld current ✔
  • Correct arc length ✔ 
  • Correct weld speed ✔
    (Any 2 x 1) (2) 

6.5 Destructive test 

6.5.1 Machinability test ✔ (1)
6.5.2 Nick-break test ✔ (1)
6.5.3 Bend test ✔ (1) 

6.6 Dye penetration test 

  • Clean the weld that needs to be tested. ✔
  • Spray dye onto the surface and leave to penetrate. ✔✔
  • Excess dye is cleaned away with a cleaning agent. ✔ 
  • Allow surface to dry. ✔ 
  • Spray a developer onto the surface to bring out the dye trapped in the  crack. ✔ 
  • The dye will show all the surface defects. ✔ (7)

6.7 Functions of MIG/MAGS components 
6.7.1 Wire feed controller 

  • Feeds the consumable electrode wire to the welding gun at a  constant predetermined speed. ✔✔ (2) 

6.7.2 Welding gun 

  • Activates the supply of gas, power and wire feed✔✔ (2) 

6.8 Purpose of inert gas 

  • The inert gas shields the molten pool from the atmospheric gases. ✔✔ (2)

[25]

QUESTION 7: FORCES 
7.1 Forces 
forces
∑HC = 3,4 (√) + 1,8cos70º  (√) - 1,2cos40º  (√) + 2cos50º (√)
= 3,4 + 0,62 - 0,92 + 1,29
= 4,39 kN  (√)

∑VC = 1,2 sin40 (√) + 2sin50º  (√) - 1,8sin70º  (√) 
= 0,77 + 1,53 - 1,69
= 0,61 kN  (√)

OR 

Horizontal  component

Magnitudes 

Vertical  component

Magnitudes

-1,2cos40°✔ 

-0,92 kN

1,2sin40✔ 

0,77

3,4 ✔ 

3,4kN 

0

2cos50°✔ 

1,29kN

2sin50°✔ 

1,53

1,8cos70°✔ 

0,62kN 

-1,8sin70°✔ 

1,69

TOTAL 

4,39kN ✔ 

TOTAL 

0,61kN ✔

  • R2 = HC2 + VC2
    R = √4,392 + 0.612
    R = 4,43 kN 
  • Tanθ = VC
                HC
    = 0,61
      4,39
    θ = 7,91º
    R = 4,43 N  at  7,91º northe of east   (13) 

7.2 Stress and Strain 
7.2.1 Stress: 

  • A = π(D2 - d2)
                  4
    A = π(0,0982 - 0,0672)
                         4
    = 4,02 × 10-3 m2
    σ = F
          A
    σ =      40000      
            4,02 × 10-3
    σ = 9950248,76Pa
    σ = 9,95 MPa        (5) 

7.2.2 Strain: 

  • ε =    σ    
             E
    ε  = 9,95 × 106
           90 × 109
    = 0,11 × 10-3     or 1,11 × 10-4      (3) 

7.2.3 Change in length 

  • ε =   ΔI  
           oI
    ΔI =  ε  ×  ol
    = (0,11  × 10-3) × 0,08
    =8,8 ×  10-6m
    = 8,8 × 10-3 mm   (3) 

7.3 Moments 
Calculate A. Moments about B 

  • ∑RHM =∑ LHM
    (A × 11,6) = (200 × 5,8) + (928 × 5,8) + (600 × 2,8)
    11,6A = 1160 + 5382,4 + 1680
    11,6A = 8222,4
     11,6       11,6
    A = 708,83 N

Calculate B. Moments about A 

  • ∑LHM =∑ RHM
    (B × 11,6) = (600 × 8,8) + (928 × 5,8) + (200 × 5,8)
    11,6B = 5280 + 5382,4 + 1160
    11,6B = 11822,40
     11,6        11,6
    B = 1019,17 N    (6) 

[30] 

QUESTION 8: MAINTENANCE  
8.1 Preventative maintenance 

  • Can be described as maintenance of equipment or system before a fault  occurs.✔ ✔  (2) 

8.2 Lock out 

  • Locking out means that the machine's start switch cannot be activated without  the knowledge of a servicing technician otherwise an accident would  occur.✔ ✔  (2) 

8.3 Clutch free-play 

  • The distance the pedal moves before the slack is taken from the linkage and  release bearing. ✔ ✔  (2) 

8.4 Viscosity index 

  • Viscosity index is a measure of how much the oil's viscosity changes as  temperature changes. ✔  (1) 

8.5 Replace clutch plate: 

  • Worn friction linings. ✔ 
  • Weak or broken springs. ✔ 
  • Glazed friction linings due to overheating. ✔ 
  • Oil on friction linings. ✔
    (Any 2 x 1) (2) 

8.6 Grease – high viscosity 

  • To ensure that the grease coats and sticks ✔  to the bearing surfaces it is  lubricating. ✔  (2) 

8.7 Cutting fluid 

  • Mixture of soluble oil ✔  and water. ✔  (2) 

8.8 Viscosity of cutting fluid 

  • Has a low viscosity to allow easy flow ✔  and effective dissipation of excess  heat. ✔  (2)

[15]

QUESTION 9: SYSTEMS AND CONTROL 
9.1 Gear drives  
9.1.1 Rotation frequency of the output shaft 

  •    NINPUT       = TB ×  TD
       NOUTPUT      TA × TC
    NOUTPUT = TA × TC  ×  NINPUT
                       TB × TD
    NIOTPUT = 18 × 16  × 1660
                     36 ×  46
    = 288,70 r/min   (3) 

9.2.2 Velocity Ratio 

  • VR   NINPUT     
              NOUTPUT
       1660     
          288,70
    =   5,75: 1    (2) 

9.2 Belt Drives 
9.2.1 Rotation frequency of the driver pulley π(D t) N 

  • V = π( D + t) × N
                  60
    N =     V × 60    
            π(D + t)
    N =      36   ×    60     
         π(230 + 12) × 10-3
    2841,11r/min (4) 

9.2.2 Power transmitted 

  • T1 = 2,5
    T2
    T1 = 2,5 × T2 
    =2,5  × 110
    = 275 N
  • P = (T1 - T2)V
    P = (275 - 110) × 36
    = 5940W
    5,94kW (4) 

9.3 Hydraulics 
9.3.1 Fluid pressure 

  • AB = πD2
              4
    = π × 0.0752
             4
    = 4.42 × 10-3 m2
  • PB = F
    AB
       700 × 10   Pa
       4.42 × 10-3 
    = 1583710, 41Pa
    = 1583, 71 kPa ✔ (4) 

9.3.2 Effort on piston A  

  • AA = πD
    π × 0.042
           4
    = 1,256 × 10-3 m2
  • PA = FA
            AA
    FA = PA × AA
    =(1583,71 × 103) × (1,256 × 10-3)
    = 1990,10 N
    = 1,99 kN  (4) 

9.4 ABS 

  • Prevents wheel from locking during heavy breaking. ✔✔ (2) 

9.5 Seat belt 

  • A seat belt has to be activated for its safety to be functional. ✔✔ (2)

[25] 

QUESTION 10: TURBINES 
10.1 Impulse Turbine 

  • Waterwheel ✔ 
  • Pelton ✔ 
  • Turgo ✔ 
  • Michell – Banki/Crossflow/Ossberger✔ 
  • Jonval turbine ✔ 
  • Reverse overshot waterwheel ✔ 
  • Archimedes' screw turbine ✔ 
    (Any 2 x 1) (2) 

10.2 Water turbine 
10.2.1

  • Water turbine ✔
  • Kaplan-turbine ✔
  • Reaction turbine ✔
    (Any 1 x 1) (1) 

10.2.2 Parts 

  1. – Wicked gate ✔ 
  2. – Rotor ✔ 
  3. – Stator ✔ 
  4. – Shaft ✔ 
  5. – Water-flow ✔ 
  6. – Blades ✔  (6) 

10.2.3 Advantages of water turbine 

  • Low maintenance ✔ 
  • No need for lubrication ✔ 
  • Fewer moving parts ✔ 
  • Environmental friendly ✔ 
  • Cost effective ✔ 
    (Any 2 x 1) (2) 

10.3 Turbines 
10.3.1 Advantage of supercharger:  

  • Increases the output power of the engine. ✔ 
  • A smaller engine fitted with a centrifugal blower delivers the  same power as a larger engine. ✔   
  • It eliminates lack of oxygen above sea level. ✔ 
  • Increases the volumetric efficiency of the engine. ✔ 
  • With the aid of the intercooler both the power and the torque  output of the engine are increased. ✔ 
    (Any 2 x 1) (2)

10.3.2 Advantages of steam turbines:  

  • It is compact. ✔ 
  • No lubrication is required. ✔ 
  • Steam turbine speeds can be more accurately regulated. ✔ 
  • A variety of fuels can be used to obtain steam. ✔ 
  • Steam turbines are more economical. ✔ 
  • Higher speeds can be obtained as compared to internal  combustion engine. ✔ 
  • Convert heat energy into mechanical energy. ✔ 
    (Any 2 x 1) (2) 

10.3.3 Advantages of gas turbines:  

  • Very high power to weight ratio ✔ 
  • Smaller than most reciprocating engines of the same power  rate ✔ 
  • Moves in one direction only, with far less vibration ✔ 
  • Low operating pressures ✔ 
  • High operating speeds ✔ 
  • Low lubricating oil cost and consumption ✔   
    (Any 2 x 1) (2) 

10.4 Turbo lag 

  • It is a delay ✔  between pushing on the accelerator ✔  and feeling turbo  kick in. ✔  (3)

[20] 
TOTAL: 200