O Levels Physics Mcq Simulation

This is a simulation for your MCQ physics paper.

The Actual paper is 40 questions and 1 hour long.

You will only have 50 minutes for this simulation. 40 minutes to do and 10 minutes to check your work.

Times up!

O level Pure physics

1 / 40

1) The diagram shows a permanent magnet approaching a solenoid at a constant speed.

1. B

2. D

3. C

4. A

2 / 40

2) A horizontal beam of electrons passes between the two poles of a magnet.

In which direction is the beam deflected?

1. towards the north pole

2. out of the page

3. into the page

4. towards the south pole

3 / 40

3) The pressure inside a gas cylinder is measured separately using two different mercury
manometers as shown in Fig. P and Q. One of the manometers has an open end while the other has a sealed end.
A barometer, as shown in Fig. R, is used to measure the atmospheric pressure at the location of the experiment.

The diagrams are not drawn to scale.
What is the height, h, of the mercury in Fig. Q?

1. 40 mm

2. 1000 mm

3. 720 mm

4. 800 mm

4 / 40

4) Smoke particles in a transparent box are observed using a microscope. A small point of light is seen to move around as shown.

What does this experiment demonstrate about air molecules?

1. They move because of collisions with smoke particles.

2. They are in continuous random motion.

3. They move more quickly when they are heated.

4. They can be seen through a microscope.

5 / 40

5) A boy climbs slowly at a steady speed to the top of a small hill.

What is the main energy transfer taking place for the boy as he climbs?

1. chemical potential store to gravitational potential store

2. kinetic store to gravitational potential store

3. internal store to kinetic store

4. chemical potential store to kinetic store

6 / 40

6) A water wave travels from deep water to shallow water in a ripple tank as shown in the diagram.

Waves in the deep water have a wavelength of 3.6 cm and a speed of 18 cm /s.

The speed of the waves in shallow water is 15 cm / s. What is the wavelength of the waves in the shallow water?

1. 3.6 cm

2. 5.0 cm

3. 4.3 cm

4. 3.0 cm

7 / 40

7) A light dependent resistor (LDR) and a 500 Ω resistor form a potential divider between voltage lines held at +30 V and 0 V as shown in the diagram. The resistance of the LDR is 1000 Ω in the dark but drops to 100 Ω in bright light.

What is the corresponding change of potential difference between X and Y when the LDR is placed in a dark room and then move to a bright room?

1. a fall from 20 V to 5 V

2. a rise from 5 V to 20 V

3. a rise from 5 V to 30 V

4. a fall from 30 V to 5 V

8 / 40

8) The ends of three metal rods are tested by holding end Q of rod 1 close to each end of rods 2 and 3.

The results are as follows:

End Q attracts end R.

End Q attracts end S.

End Q attracts end T.

End Q repels end U.

Which of the metal rods is a magnet?

1. rod 2 and rod 3 only

2. rod 1 only

3. rod 2 only

4. rod 1 and rod 3 only

9 / 40

9) The speed of a wave is 4.0 × 10^5 m/s. The wavelength of the same wave is measured to be 5.0 × 10^6 m.

Determine the period of the wave.

1. 12.5 s

2. 0.080 s

3. 2.0 × 10^12 s

4. 5.0 × 10^-13 s

10 / 40

10) Which properties make materials suitable for use as a core in an electromagnet?

1. difficult to magnetise and easy to demagnetise

2. difficult to magnetise and retains magnetic strength

3. easy to magnetise and retains magnetic strength

4. easy to magnetise and easy to demagnetise

11 / 40

11) The diagram shows an ornament hung from a ceiling. It consists of objects X, Y and Z suspended from light rods A and B. The masses of X, Y and Z are such that the rods are horizontal.

1. C

2. A

3. D

4. B

12 / 40

12) Object X is stationary and positively charged. It experiences a force due to the field produced by object Y. The arrows show the direction of the field produced by Y.

Which statement about the direction of the force on X is correct?

1. It is towards the left because it is in a magnetic field.

2. It is towards the left because it is in an electric field.

3. It is towards the right because it is in a magnetic field.

4. It is towards the right because it is in an electric field.

13 / 40

13) A water wave moves from deep water to shallow water. Its speed decreases in shallow water. Which statement correctly describes the frequency and wavelength of the wave in the shallow water?

1. Frequency decreases while wavelength remains unchanged.

2. Both frequency and wavelength decrease.

3. Both frequency and wavelength remain unchanged.

4. Frequency remains unchanged while wavelength decreases.

14 / 40

14) A pulse of sound is transmitted vertically downward from the bottom of a stationery ship, and the time taken for its echo to be detected back at the ship is recorded. The ship repeats this process at another location. The new time recorded is 1.5 times as long as the time taken at the first location.

Which of the following is correct?

1. The speed of sound at the original location is 0.75 times as fast as at the new location.

2. The depth at the new location is 1.5 times as deep as the original location.

3. The depth at the new location is 0.75 times as deep as the original location.

4. The speed of sound at the original location is 1.5 times as fast as at the new location.

15 / 40

15) An experiment is carried out as shown in the diagram.

The ice takes a long time to melt, even though the water at the top of the boiling tube is boiling. Which statement best explains this?

1. The wire gauze prevents energy transferred by heating from reaching the ice.

2. Cold water at the top of the boiling tube sinks to the bottom.

3. Water is a poor conductor of heat.

4. Hot water at the bottom of the boiling tube rises to the top.

16 / 40

16) Which instrument is most suitable for measuring the internal diameter of a pipe?

1. manometer

2. digital calipers

3. measuring cylinder

4. digital micrometer

17 / 40

17) A car of mass 1500 kg is towing a trailer of mass 1100 kg along a level road. The acceleration of the car is 1.30 m/s2. Ignoring friction and air resistance, what is the driving force on the car?

1. 520 N

2. 1950 N

3. 3380 N

4. 1430 N

18 / 40

18) A computer engineer wants the speed of a fan to increase when the temperature inside a computer increases. The engineer knows that a larger current causes the fan to turn more quickly.

Which component should be placed at X to make this happen?

1. a transformer

2. a relay

3. a variable resistor

4. a thermistor

19 / 40

19) As air is sucked from a straw out of a sealed packet drink, the packet shrinks in volume.

Which of the following best explains why the packet drink shrinks in volume?

1. The air molecules move more quickly when they are heated.

2. The collision of air molecules with the internal surface area of packet drink has decreased.

3. The kinetic energy of the air molecules in the packet drink has decreased and the frequency of collisions of the air molecules and packet wall has decreased.

4. The air molecules are in continuous random motion.

20 / 40

20) The diagram below shows a simple mercury barometer that has been correctly constructed. At which point in the mercury column is the pressure equal to 10 cm Hg less than the atmospheric pressure?

1. D

2. C

3. B

4. A

21 / 40

21) A 5.0 W lamp is switched on for 180 s. It transfers 600 J to the internal store (thermal) of the surroundings. What is the efficiency of the lamp?

1. 33 %

2. 43 %

3. 70 %

4. 67 %

22 / 40

22) A beam of electrons moves in a straight path through a magnetic field with an initial velocity, v. The electrons are deflected as shown.

What is the direction of the magnetic field?

1. into the paper

2. out of the paper

3. to the left

4. to the right

23 / 40

23) A 4.0 m long uniform plank weighing 50 N balances on two pivots P and Q when a load of 40 N is placed at one end.

1. D

2. A

3. B

4. C

24 / 40

24) The diagram below shows the plug of an old electric iron wired wrongly.

What happens when the electric iron is plugged into the electrical socket?

1. The electric iron catches fire.

2. The fuse in the plug blows.

3. The electric iron does not work.

4. The metal case becomes live.

25 / 40

25) Which statement about electromagnetic waves in a vacuum is correct?

1. Microwaves have longer wavelengths than radio waves.

2. Infrared waves have shorter wavelengths than visible light waves.

3. gamma-rays have lower frequencies than X-rays.

4. Ultraviolet waves have higher frequencies than visible light waves.

26 / 40

26) A man pushes a heavy box with a weight of 50 N along a rough ground with a force of 30 N. The box moves at constant speed.

What is the resultant force acting on the box?

1. 0 N

2. 30 N

3. 50 N

4. 80 N

27 / 40

27) A block of wood of mass 2.0 kg is pushed along the horizontal flat surface of a bench with a force of 4.0 N. It moves at constant speed. When the pushing force is increased to 12 N, what is the acceleration of the block?

1. 4.0m/s^2

2. 6.0m/s^2

3. 0m/s^2

4. 8.0m/s^2

28 / 40

28) The diagram shows an a.c. generator.

1. D

2. B

3. C

4. A

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29) A box of mass 2.0 kg is pushed along a 12 m ramp with a force F of 15.0 N and accelerates from point P to point Q. The speed of the box is 2.0 m / s at P and the average frictional force acting on the box is 4.0 N throughout the motion. The gravitational field strength is 10 N / kg.

What is the speed of the box at point Q?

1. 8.0 m / s

2. 5.7 m / s

3. 16 m / s

4. 6.0 m / s

30 / 40

30) Which of the following best describes the conventional current and its unit?

1. It is the rate of flow of positive charges and its unit is the ampere.

2. It is the rate of flow of negative charges and its unit is the coulomb.

3. It is the rate of flow of negative charges and its unit is the ampere.

4. It is the rate of flow of positive charges and its unit is the coulomb.

31 / 40

31) Wiping the body of a patient who has a high fever with a wet towel makes use of the cooling effect of evaporation. When liquid evaporates, some liquid molecules in the liquid escape.

Which molecules in the liquid escape?

1. the molecules at the bottom of the liquid with less energy than others

2. the molecules at the bottom of the liquid with more energy than others

3. the molecules at the surface of the liquid with more energy than others

4. the molecules at the surface of the liquid with less energy than others

32 / 40

32) Which process(es) of thermal energy transfer require a medium?

1. radiation only

2. conduction only

3. convection and radiation

4. conduction and convection

33 / 40

33) In nuclear ……1……, hydrogen nuclei ……2…… to form helium nuclei, releasing energy.

Which words correctly complete blanks 1 and 2?

1. B

2. A

3. D

4. C

34 / 40

34) Bats produce ultrasound to navigate.

What is the possible frequency range of ultrasound waves?

1. 20 kHz to 120 kHz

2. 0 Hz to 20 Hz

3. 20 Hz to 20 kHz

4. 20 Hz to 1200 Hz

35 / 40

35) A ball is dropped from the top of a 125 m tall building.

What is the time it takes to fall to the ground? Take g to be 10 m/s2.

1. 1.25 s

2. 10.00 s

3. 0.325 s

4. 5.00 s

36 / 40

36) In a Brownian motion experiment involving smoke particles in air, heavy particles settle quickly but very small particles remain suspended for long periods of time. Which statement explains why the very small smoke particles do not settle?

1. The Earth’s gravitational field does not act on very small smoke particles.

2. Air pressure has a greater effect on very small smoke particles.

3. Molecular bombardment by air molecules keeps the very small smoke particles suspended.

4. The small smoke particles have the same density as the air.

37 / 40

37) The diagrams show four table lamps resting on a table. The position of the centre of mass of
each lamp is labelled X.
Which lamp is the least stable?

1. C

2. B

3. D

4. A

38 / 40

38) An electron is placed at the point N in the electric field as shown below where point N is the centre of two identical positive charges.

What is the motion of the electron?

1. moves upwards

2. moves downwards

3. moves out of the plane of paper

4. does not move

39 / 40

39) Nuclear fusion is a reaction that can take place in the sun.
Which row describes this reaction?

1. A

2. D

3. B

4. C

40 / 40

40) A loudspeaker and a microphone are placed side by side in front of a wall. The loudspeaker makes a sound that is detected by the microphone. The microphone is connected to a device known as an oscilloscope, which is set so that each horizontal division on its screen represents a duration of 0.01 s. The microphone detects the original sound and the echo.

The speed of sound in air is 300 m/s.

What is the distance between the loudspeaker and the wall?

1. 6.0 m

2. 48 m

3. 24 m

4. 12 m

Your score is

The average score is 14%

Physics MCQ Paper 1 now carries a 30% weightage under the current syllabus.
This is a significant portion that can easily impact your final grade by 2–3 bands. To maximise your score, aim for full marks by doing plenty of targeted practice. It might make the difference between A1 and A2.

Never underestimate the difficulty of multiple-choice questions — they are often designed to test your precision and attention to detail. Always check your answers carefully, manage your time wisely, and stay alert for tricky questions.

How are the questions being set?

-Knowledge with Understanding, approximately 45% of the marks with approximately 15% allocated to recall.

-Handling Information and Solving Problems, approximately 55% of the marks.