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. C

2. B

3. D

4. A

2 / 40

2) A girl pulls a 40 kg block up a smooth 30° inclined plane. The inclined plane is 10 m long and the block is pulled from the bottom of the inclined plane to the top in 40 s. Take g to be 10 N/kg.

What is the average useful power output of the girl?

1. 10W

2. 100W

3. 5W

4. 50W

3 / 40

3) In the circuit shown, the battery has an electromotive force (e.m.f.) of 6.0 V and negligible internal resistance. The three resistors each have resistance R.

The total power dissipated in the resistor network is 24 W. What is the value of R?

1. 1.0 ohms

2. 1.5 ohms

3. 0.5 ohms

4. 2.3 ohms

4 / 40

4) 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. 12 m

2. 6.0 m

3. 24 m

4. 48 m

5 / 40

5) A wire has a resistance of 8.0 Ω. A second wire, made of the same material, has double the length and half the thickness.

What is the resistance of the second wire?

1. 8 ohms

2. 16 ohms

3. 32 ohms

4. 64 ohms

6 / 40

6) 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. B

2. A

3. D

4. C

7 / 40

7) The diagram below shows light travelling from water and undergoing refraction.

1. C

2. B

3. D

4. A

8 / 40

8) Which of the following correctly describes an action-reaction pair of forces?

1. The pulling force acting on a trolley and the frictional force acting on the trolley.

2. A runner pushes backward on the ground and the ground pushes forwards on runner.

3. The reaction force on a book resting on a table and the weight of the book.

4. The backward force acting on water by propeller and the resistive force acting on the boat.

9 / 40

9) An observer hears a clap of thunder 3.0 s after seeing the flash of lightning. The speed of sound in air is 330 m/s.

How far from the observer was the lightning?

1. 330 m

2. 990 m

3. 1980 m

4. 110 m

10 / 40

10) Waves in the electromagnetic spectrum have different uses.

Which uses of the electromagnetic spectrum are incorrect?

1 . X-rays are used for prenatal scanning of the foetus.

2. Infra-red radiation is used in suntanning beds.

3. Microwaves are used in wireless telecommunications.

1. 1 and 3 only

2. 2 and 3 only

3. 1, 2 and 3

4. 1 and 2 only

11 / 40

11) The diagram shows the speed-time graph of a moving object over a period of 50 s.

What is the average speed of the object when it is decelerating?

1. 11 m/s

2. 10 m/s

3. 17 m/s

4. 12 m/s

12 / 40

12) Ultrasound is high-pitched and cannot be heard by human ears. However, ultrasound has many uses.

Which of the following is/are the correct use/s of ultrasound?

(1) Checking for cracks or damages in materials.

(2) Medical scanning of organs and tissues.

(3) Radar systems used by air traffic controllers to detect the location of an aeroplane.

1. (1) and (2) only

2. (1) only

3. (2) only

4. (1) and (3) only

13 / 40

13) A metal rod AB is placed on two smooth horizontal metal rails on the bench. The rail and the rod are subjected to an external magnetic field. The top view of the setup is shown below.

When switch S is closed, in which direction will rod AB move?

1. out of the page

2. to the left of the page

3. into the page

4. to the right of the page

14 / 40

14) 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. 2.0 × 10^12 s

3. 0.080 s

4. 5.0 × 10^-13 s

15 / 40

15) The diagram shows an ideal transformer. An alternating current supply of 100 V is supplied to the primary coil and a current of 0.50 A flows through it.

1. A

2. C

3. D

4. B

16 / 40

16) Eskimos build igloos as temporary shelter in extremely cold places such as the Arctic. The diagram shows a cross-section of an igloo. The entrance is dug deep enough (lower than the sleeping area) to create a cold sink

Which statement about the air in the igloo is correct?

1. The air in the igloo is heated up by conduction only.

2. Cold air is denser and remains in the cold sink.

3. The warm air in the igloo is less dense, contracts and rises.

4. Warm air in the cold sink expands, becomes denser and rises out of the cold sink to heat up the rest of the igloo.

17 / 40

17) Electromagnetic waves from the Sun are absorbed by a solar panel. These waves transfer energy electrically to a portable traffic light system.

A few solar panels with a total area 12 m2 were used to operate the traffic light system. 1.0 m2 of a panel receives 0.85 kJ of energy via electromagnetic waves from the Sun in 1.0 s.

If the efficiency of the panels is 16 %, how much power do they transfer electrically?

1. 160 kW

2. 1.6 kW

3. 64 kW

4. 2.2 kW

18 / 40

18) The diagram below shows a manometer.

What is the pressure of the enclosed air in the manometer?

1. 120 mmHg

2. 200 mmHg

3. 550 mmHg

4. 80 mmHg

19 / 40

19) 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. 720 mm

2. 40 mm

3. 800 mm

4. 1000 mm

20 / 40

20) A parachutist falls from a stationary balloon at time t = 0 s. The velocity-time graph for the parachutist from time t = 0 s until the time when he is just above the ground is shown.

1. D

2. B

3. A

4. C

21 / 40

21) 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. B

3. C

4. A

22 / 40

22) The diagram shows two buoys P and Q sitting on a pond. A wave moves across the pond from left to right.

At the moment shown, buoy Q is at the crest and buoy P is at the trough. Which row describes the movement of the buoys during the next cycle of the wave?

1. D

2. B

3. C

4. A

23 / 40

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

1. A

2. B

3. C

4. D

24 / 40

24) A block of gold of mass m has a specific heat capacity of c. A block of copper of mass 2m has a specific heat capacity of 3c. Both metals receive the same quantity of heat and the temperature of the copper rises by 10 °C.

What is the temperature rise of the gold block?

1. 60 oC

2. 15 oC

3. 20 oC

4. 30 oC

25 / 40

25) An electric heater which is rated ‘240 V, 1500 W’ is connected to a 3-pin socket. Which of the following correctly describes the current in the neutral wire and the potential difference between the earth and neutral wire during normal operation?

1. D

2. B

3. C

4. A

26 / 40

26) The diagram shows two wires, X and Y, made of the same material.

Wire X has resistance R and length 𝑙𝑙. Wire Y is twice as long as wire X, and its radius, r, is half of that of wire X.

What is the resistance of wire Y?

1. R/2

2. 8R

3. 2R

4. 4R

27 / 40

27) A current of 4.5 A flows through the electrical components of a refrigerator when connected to a source of 240 V. It costs $0.35 for 1 kW h of electrical energy.

How much will it cost to keep the refrigerator running for 1 week?

1. $378

2. $2.25

3. $63.50

4. $0.05

28 / 40

28) A gas supply is connected to a mercury barometer. The same gas supply is then connected to a water barometer.

The density of mercury is 13 600 kg / m3 and the density of water is 1000 kg / m3. What is the value of h?

1. 82 m

2. 0.82 m

3. 0.68 m

4. 68 m

29 / 40

29) 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. 67 %

3. 70 %

4. 43 %

30 / 40

30) James stands at a point J between two parallel walls as shown in the diagram below and fires a pistol.

He hears the first echo after 0.40 s and the second echo after 1.0 s.

How long after firing the pistol will James hear the third echo?

1. 2.8 s

2. 2.0 s

3. 0.8 s

4. 1.4 s

31 / 40

31) 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 an electric field.

2. It is towards the left because it is in a magnetic 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.

32 / 40

32) The graph shows the total resistive force that acts on a car of mass 830 kg over a period of time. The car is at rest at t = 0 s. A constant driving force of 2500 N acts on the car from t = 2 s to t = 24 s.

Which statement is incorrect?

1. The acceleration of the car is 3.0 m/s2 at t = 2 s.

2. The resultant force acting on the car increases from t = 2 s to t = 16 s.

3. The car is stationary from t = 0 s to t = 2 s.

4. The acceleration of the car is zero after t = 16 s.

33 / 40

33) A student pushes the N-pole of a bar magnet into end Q of a long solenoid. An electromotive force and hence an induced current is induced in the solenoid and the galvanometer needle deflects to the left as shown.

Which of the following produces a deflection in the same direction?

1. pulling the S-pole out of end P

2. pushing the N-pole into end P

3. pushing the S-pole into end P

4. pulling the N-pole out of end Q

34 / 40

34) A combined bathroom unit of a heater and a lamp is controlled by one switch. The unit contains a 2 kW heater and a 100 W lamp. In one week, the lamp uses 1 kWh of electrical energy.

How much electrical energy is used by the heater alone?

1. 10 kWh

2. 20 kWh

3. 4 kWh

4. 2 kWh

35 / 40

35) In a nuclear power station, energy released from nuclear reactions are harnessed to produce electricity. Which statement about the reactors in a nuclear power plant is correct?

1. A nuclear reaction may be initiated when a proton bombards a heavy nucleus, causing more protons to be released in a chain reaction.

2. Nuclear reactors make use of reactions where heavy nuclei decay into smaller nuclei.

3. The reactions are easily controlled and no harmful substances are produced in a nuclear reaction.

4. Large amount of radioactive substances are required to produce a small amount of electricity.

36 / 40

36) Electricity is transmitted over large distances through high-voltage power cables running alternating current. What are the advantages of using high-voltage cables and alternating current?

1. C

2. D

3. B

4. A

37 / 40

37) A neutral atom of an isotope has the nuclide notation 84𝐾36.

Which statement is correct?

1. There are 36 electrons in the nucleus of the atom.

2. There are 45 neutrons in the nucleus of the atom.

3. There are 12 more neutrons than electrons in the atom.

4. There are 48 protons in the nucleus of the atom.

38 / 40

38) The diagram shows two divergent rays of light from an object O being reflected from a plane mirror. At which position is the image formed?

1. C

2. A

3. B

4. D

39 / 40

39) The diagram shows a simple A.C generator, consisting of a coil of wire WXYZ placed in between two magnets.

1. D

2. A

3. B

4. C

40 / 40

40) A transverse wave is produced on a rope. The diagram shows the rope at one instant. The wave travels at a speed of 4.0 m/s.

What are the wavelength and the frequency of the wave?

1. B

2. A

3. C

4. D

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.