2025_physics_olevel_mj_paper1

Extracted Content: 2025_physics_olevel_mj_paper1

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_—_— te Rn aT ee

Fee Performon.¢ Urea ree

ZIMBABWE SCHOOL EXAMINATIONS COUNCIL
General Certificate of Education Ordinary Level

4023/1

1 hour

PHYSICS
PAPER 1 Multiple Choice

JUNE 2025 SESSION

Additional materials:
Multiple Choice answer sheet

Soft clean eraser

Soft pencil (type B or HB is recommended.)
Electronic calculator

INSTRUCTIONS TO CANDIDATES

Answer all questions. For each question, there are four possible answers, A, B, C and D.
Choose the correct answer. Record your choice in soft pencil on the separate answer sheet.

Read very carefully the instructions on the answer sheet.

INFORMATION FOR CANDIDATES

There are forty questions in this paper. Each correct answer will score one mark. Any rough
working should be done on this question paper.

This question paper consists of 19 printed pages.
Copyright: Zimbabwe School Examinations Council, J2025.

©ZIMSEC J2025 [Turn over

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Which instrument accurately measures the internal diameter of a boiling tube? tape measure vernier calipers

A
B
C metre rule
D

micrometer screw gauge

What are the base units of force?
A kem/s’

B_ kgms’

C kgms

D_ kgm/s

Acceleration is defined as the rate of change of
A displacement.

B distance.
C velocity.
D

speed.

A piece of wire is 60 cm long and 0.2 cm in diameter .
What is its volume?

A 18.85 cm
B 12.00 cm
C 7.54cm’

D 1.88cm

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; nt force 8 A trolley is loaded with three concrete bricks and set in motion by a consta producing an acceleration. If one brick is removed, the trolley will

A decelerate.
B accelerate more.
C maintain its velocity.

D maintain its acceleration.

6. Similar metallic spheres were placed at different positions on a surface.
Which sphere A, B, C or D is the least stable?

Ve oap g
AN

NS TIRE y
| a

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cs =

i as ressure.
The diagram shows a manometer measuring gaS P

—i

<— gas in

atmospheric pressure
A

|

The pressure of the gas piped into the manometer is

pgh. + A.
pgh, + A.

pgh2 — A.

5s A we e

pgh; + A.

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8. The diagram shows a fish pond with fish at different heights from the bottom of the pond,

Which fish A, B, C, or D is experiencing the greatest pressure?

9. What is the power generated when an object of mass 2 kg falls with a constant velocity
of 3 m/s?

[ Take acceleration due to gravity to be 10 m/s']
A OW
B 60W
C 90W

D 180W

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—_—_— i ——

10. ‘The diagram shows a pulley system.

What is the work done by the effort, E, when the pulley system raises the load, L, by

4m?

A 3600J
B 4800J
C 9600J
D 14400J

11. | When builders lay bricks, they are making

5s A &

lapped joints.
pinned joints.
mortised joints.

grooved joints.

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12.

13.

14.

15.

ee Te ee

Which process only occurs in a four stroke engine?
A ignition by compression

B ignition by spark plug

C filtration of air

D filtration of fuel

An object of mass 2 kg is dropped from a height of 5 m.
What is the kinetic energy as it hits the ground?

A 10J

B 20J
Cc 100J
D

500 J

Air vents allow heat exchange mainly through
A radiation only.

B conduction and convection.

C radiation and convection.
D

convection only.

When a substance is melting or boiling its
A temperature increases.

B kinetic energy increases.

C. latent energy increases.

D particle size increases.

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16.

17.

18.

The amount of heat needed per unit mass to change the state of a substance at constant

temperature is called

A latent heat.

B heat capacity.

C_ specific latent heat.
D

specific heat capacity.

Which property distinguishes longitudinal waves from transverse waves?

A ability to be refracted
amplitude of vibration

period of oscillation

5s AO &

direction of vibration of particles

Which diagram shows the correct path of a light ray travelling from glass to air?

air

A
;
) ; glass
4

air

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19. The diagram shows a wave profile for sound.

displacement/mm

distance/mm

What cannot be obtained from the graph?

A amplitude
B_ wavelength
C loudness
D period
20. When a tuning fork is struck in a vacuum, it

A produces sound.
B produces high pitch sound.
C produces low pitch sound.

D produces no sound.

4023/) J2025

[Turn avar

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21. | The diagram shows a diverging lens.

What name is given to point P?

principal focus
focal length

principal axis

5 A Be Pp

virtual point

22. In sound waves pitch is related to
A speed.
B amplitude.
C frequency.

D_ wavelength.

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11

23. Which energy change takes place when electric current flows through a resistor?
A chemical to heat
B electrical to heat
C chemical to electrical
D heat to electrical
24. Which fuse rating is suitable for an appliance rated 800 W, 240 V, to prevent
overheating?
A 1A
B 2A
C 3A
D 10A
25. A wire of length 2.5 m and area 1.76 x 10° m has a resistance of 0.5 92.

What is its resistivity?

A

2.20x10° Qn
3.52x10 Qm
8 80x10 Qm

7.10x10 Qm

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26. Which graph shows the variation of current, /, and potential difference, V, for an Ohmic conductor?

iY le
(er lZ

27. Which part of a d.c motor reverses the direction of current to have rotation in one
direction?
A coil
split rings

B
C slip rings
D carbon brushes

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13

28. Which component is used to rectify a.c?
A buzzer

B_ thermistor

C capacitor

D_ diode

29. Which device does not use the magnetic effect of current?
A switch
B electric bell
C generator
D

transformer

30. Which statement best describes the cause of induction in a transformer?
movement of the primary and secondary coils
relative motion between magnets and coil

change in magnetic fields

5" A Be Pp

change in eddy currents

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—_—_—S—_———— rl OOO! Tr O_O

31. The diagram shows two separate circuits containing solenoids.

)QOC

What happens to the galvanometer when S is closed?
A does not deflect |

B_ repeatedly deflects

C momentarily deflects
D

deflects and gives a constant value

32. Hot filaments emit

A protons.
B neutrons.
C atoms.
D electrons.
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33. A magnet cannot be demagnetised by A heating. hammering.

electrical methods.

5" AO 8

stroking.

34, The diagram shows a step down transformer.

Vin (~~
240V |

1000 turns _

What is Vout

0.001 V
48 V
833 V

5s A BS Pe

1200 V

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200 turns

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35. In which circuit would the voltmeter record the highest reading during the night? A B c D

36. A diode is an electronic device that
A conducts current.
has high resistance.

allows conduction in one direction.

5 A SS

does not allow conduction in one direction.

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The diagram sh fal div; sani? 37. g OWS a potential divider circuit consisting of a thermistor and a resistor.

12 V

OV

What happens to the reading of the voltmeter when the thermistor is placed in hot
water?

A_ reduces to zero

B stays the same

C increases to a maximum value
D

reduces not getting to zero

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38. The nuclide notation for Uranium -235 is ri U.

Which row A, B, C or D shows an isotope of Uranium?

mass number

39. The diagram shows radiation through different media.
Which one, A, B, C or D would be beta particles?

radioactive sheet of Aluminium plate
Source paper foil
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40.

The diagra
gram shows a decay curve of a radioactive isotope with a half-life of 5 years.
N
500

tN
Wr
f=)
!
'
SS ae

~ ed

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