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ZIMBABWE SCHOOL EXAMINATIONS COUNCIL

General Certificate of Education Advanced Level

PHYSICS 6032/4

PAPER 4 Practical Test

SPECIMEN PAPER 2 hours 30 minutes

Candidates answer on the question paper.
Additional materials:
As listed in Instructions to Supervisors
Electronic calculator

TIME 2 hours 30 minutes
INSTRUCTIONS TO CANDIDATES

Write your name, Centre number and candidate number in the spaces at the top of this page

and on any separate answer paper used.

Answer all questions.

Write your answers in the spaces provided on the question paper.

In Questions 1 and 2, you are expected to record all your observations as soon as these observations are
made, and to plan the presentation of the records so that it is not necessary to make a fair copy of them.
The working of the answers is to be handed in. Marks are mainly given fora clear record of the
observations actually made, for their suitability and accuracy, and for the use made of them. Routine

precautions and theory are not wanted in Questions 1 and 2. You should, however, record any special
precautions you have taken so as to aid accuracy. At the end of the examination, fasten any separate
answer paper used securely to the question paper.

INFORMATION FOR CANDIDATES FOR EXAMINER’S USE
Questions 1 and 2 carry 18 marks each and question 3 1

carries 14 marks.

Squared paper and Mathematical tables are available. 2

Additional paper and graphs should be submitted only if

it becomes necessary to do so. 3

Y ou are advised to spend approximately one hour on each of

Questions 1 and 2 and 30 minutes on Question 3 TOTAL

Y ou are reminded of the need for good English and clear

presentation in your answers.

This question paper consists of 9 printed pages, 2 lined pages and 1 blank page.
Copyright: Zimbabwe School Examinations Council, Specimen paper.

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It is recommended that you spend about 60 minutes on this question.

1 In this experiment you will investigate the relationship between the angle, 6, between
a pair of springs and the mass, m, hung from them.

(a)

(b)

(©)

Set up the apparatus as shown in Fig. 1.1.

~+— 20 cm +!
wooden clamp

spring

loop

stand

mass hanger

brick

Fig. 1.1

(1) Suspend the mass hanger from the centre of the loop.

(ii) Measure and record the angle, 0.

(iii) | Add more masses and repeat h(i) and b(ii) for mass, m, in the range
100 g <m< 600 g to obtain five further readings. Include the values
of m, and cos @in your table of values.

Theory suggests that m and @are related by the equation

m=acos0+A

where a and A are constants.

(1) Plot a graph of m against cos@.

(ii) Determine the gradient and hence a and A.
(iii) | Determine the percentage uncertainty in the value of a using error bars.

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It is recommended that you spend about 60 minutes on this question.

In this experiment you will investigate how the emf, V, of a thermocouple varies with
temperature, @.

(a) @ Set up the apparatus as shown in Fig. 2.1.

copper
wire A W)

Fig. 2.1

(ii) | Heat the water to approximately 90°C. Close S; and S2, measure and
record the voltmeter reading, V, and the thermometer reading, 0.

(iii) | Reduce the temperature by adding small amounts of cold water to beaker
B, record the corresponding temperature, 0, and voltmeter reading, V.

Include values of 9? in your table of results.

(iv) Repeat b(iii) until you obtain 6 sets of readings of 6 and emf, V, in the
range 25 < 6 < 90.

(b) — Theory suggests that V = « + 6?
where « and # are consonants.

(0) Plot a graph of V against 67.
(ii) | Determine the gradient of the graph and hence find the values of « and f.

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It is recommended that you spend about 30 minutes on this question.

3 Fig. 3.1 shows a hunter trying to shoot an animal from a hill. Each time the hunter
attempts to shoot the animal from such a position, he misses it by a distance, x.

Sa
* ee intended bullet path
S\ ~*~ actual bullet path
aN ss . target animal

Fig. 3.1

Design a laboratory experiment to investigate how the distance, x depends on
@ height,

(ii) angle at which the bullet is fired and

(iii) —_ air resistance.

Y ou are provided with the following apparatus and any other laboratory equipment of
your choice.

Protractor

Adjustable inclined plane
Steel balls of different diameter
Carbon paper

Planks

Fan

Vacuum pump

Trolleys

Motion scissors

Light gates

Video camera.

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