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

Block A and block B are connected by a light inextensible string. A force of 12 N acts on block A as shown.

Given that the floor is smooth, what is the tension in the string connecting block A and block B?

1. 8.0 N

2. 12 N

3. 2.0 N

4. 4.0 N

2 / 40

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. 30 oC

2. 20 oC

3. 60 oC

4. 15 oC

3 / 40

A non-uniform object is placed on an inclined plane. The object is just about to topple. Which position is most likely to be its centre of gravity?

1. D

2. C

3. B

4. A

4 / 40

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. 1980 m

2. 330 m

3. 990 m

4. 110 m

5 / 40

A plotting compass is used to trace the magnetic field lines around a bar magnet

1. C

2. A

3. B

4. D

6 / 40

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

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

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

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

7 / 40

1. C

2. A

3. D

4. B

8 / 40

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

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

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

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

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

9 / 40

A house-owner replaces a blown fuse for the lights of the house. When the lights are switched on, the second fuse also blows. The house-owner then uses a third fuse with a higher rating than the previous two.

Why is this not a sensible thing to do?

1. The third fuse will melt because the rating is too high.

2. Using a fuse with too high a rating causes electric shocks.

3. The circuit may work, but the fault is not corrected.

4. Fuses only allow the circuit to work if the rating is exactly right.

10 / 40

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

11 / 40

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

1. easy to magnetise and retains magnetic strength

2. difficult to magnetise and easy to demagnetise

3. difficult to magnetise and retains magnetic strength

4. easy to magnetise and easy to demagnetise

12 / 40

A plastic tube is immersed in a liquid of refractive index 1.4. Light travelling in the plastic tube strikes the inside surface at an angle of incidence of 70°. The light undergoes total internal reflection.

1. A

2. B

3. C

4. D

13 / 40

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

Which statement is correct?

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

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

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

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

14 / 40

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

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

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

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

15 / 40

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

1. convection and radiation

2. conduction and convection

3. conduction only

4. radiation only

16 / 40

A gas is in a sealed container of constant volume. The gas is heated and the pressure of the gas on the walls of the container increases.

How do the particles of the gas cause this increase in pressure?

1. They hit the container more frequently.

2. They expand.

3. They vibrate faster.

4. They hit each other more frequently.

17 / 40

Two identical beakers contain the same mass of liquid.
Each beaker contains a different liquid.

Liquid Q has a density ρ.
What is the density of liquid P

1. ρ ÷ 3

2. 3ρ

3. 9ρ

4. ρ

18 / 40

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 rise from 5 V to 20 V

2. a fall from 20 V to 5 V

3. a rise from 5 V to 30 V

4. a fall from 30 V to 5 V

19 / 40

1. A

2. D

3. C

4. B

20 / 40

The diagram shows a simple d.c. electric motor.

When the switch is closed, which of the following statements is correct?

I. A current will flow round the coil in the direction PQRT.

II The coil will rotate in a clockwise direction when viewed from side PT.

III The split-ring commutator reverses the current after every complete cycle.

1. III only

2. II and III

3. I only

4. I and III

21 / 40

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. to the right of the page

2. to the left of the page

3. out of the page

4. into the page

22 / 40

The input power to a motor is 300 W. In 20 s, it lifts a load through a height of 6.0 m.

The efficiency of the motor is 60%.

What is the weight of the load?

1. 100 N

2. 600 N

3. 1000 N

4. 900 N

23 / 40

The diagram shows the distance-time graph of a moving object.

Which of the following describes this moving object?

1. It is a rock that is dropped from a high cliff and falling into the sea below

2. It is a train slowing down and coming to a stop at a train station.

3. It is a car that starts from rest and speeds up as it moves away from a traffic signal.

4. It is a ball thrown vertically upwards and falling back to the thrower.

24 / 40

A uniform metre rule is supported by vertical wires P and Q and remains horizontal as shown in diagram 1. The tension in each wire is 1 N. When a weight of 4 N is hung from the metre rule at the position as shown in diagram 2, the tension in Q becomes 2.3 N while the metre rule remains horizontal.

What is the distance d of the weight 4 N from end P?

1. 57.5 cm

2. Cannot be found as tension in P is unknown

3. 67.5 cm

4. 32.5 cm

25 / 40

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. 1.6 kW

2. 160 kW

3. 64 kW

4. 2.2 kW

26 / 40

The circuit diagram shows a 2.0 Ω resistor connected in series with a parallel arrangement of a 2.0 Ω resistor and a 5.0 Ω resistor.

The current flowing through the 5.0 Ω resistor is 1.0 A. What is the reading on the voltmeter?

1. 17 V

2. 7.0 V

3. 10 V

4. 12 V

27 / 40

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. 4.3 cm

2. 3.0 cm

3. 3.6 cm

4. 5.0 cm

28 / 40

Which statement about the transfer of thermal energy is correct?

1. Transfer is from a region of lower temperature to one of higher temperature.

2. Transfer by radiation does not require a medium.

3. Transfer upwards in fluids is mainly through the vibrations of neighbouring particles.

4. Transfer in solids is by means of density changes in the material.

29 / 40

The following circuit is set up

What is the reading on the ammeter?

1. 0.9 A

2. 3.0 A

3. 1.5 A

4. 0.33 A

30 / 40

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. 0.8 s

3. 2.0 s

4. 1.4 s

31 / 40

A stone has a mass of 390 g and a density of 2.7 g/cm3. Cooking oil has a density of 0.90 g/cm3.

Which mass of cooking oil has the same volume as the stone?

1. 160g

2. 130 g

3. 900g

4. 1200g

32 / 40

A gymnast of mass 60 kg lands on a trampoline. If he rebounds upwards with an acceleration of 0.60 m/s^2, what is the maximum force exerted by the trampoline on the gymnast?

1. 36 N

2. 564 N

3. 636 N

4. 672 N

33 / 40

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 (3) only

2. (1) only

3. (1) and (2) only

4. (2) only

34 / 40

The velocity-time graph of an object being thrown up vertically into the air is shown.

Which information about the motion of the object is incorrect?

1. The only force acting on the object during its motion is gravitational force.

2. The displacement of the object at time 2T is zero.

3. The acceleration of the object at time T is zero.

4. The object is momentarily at rest at time T.

35 / 40

Bats produce ultrasound to navigate.

What is the possible frequency range of ultrasound waves?

1. 0 Hz to 20 Hz

2. 20 Hz to 20 kHz

3. 20 kHz to 120 kHz

4. 20 Hz to 1200 Hz

36 / 40

The figure shows an iron bar P and steel bar Q being wound by wire and connected to a d.c. supply. A compass is placed between the two metal bars at position X.

1. B

2. C

3. D

4. A

37 / 40

Light in a vacuum strikes a glass surface at an angle of incidence of 42 °. In the glass, the angle of refraction is 29 °.

What is the speed of light in glass?

1. 4.1 × 10^8 m / s

2. 3.0 × 10^8 m / s

3. 2.2× 10^8 m / s

4. 2.1 × 10^8 m / s

38 / 40

The diagram shows a water wave traveling towards the right.

Which of the following statements is not correct?

I. Particles at X and W are in phase.

II. Particle at X will move to W after a period.

III. Particle at Z will move up in the next instant.

IV. Wavelength of the wave is represented by XY.

1. all the above

2. II and IV only

3. I, II and IV only

4. I and III only

39 / 40

The diagram shows an object on the principal axis of a converging (convex) lens. F is the principal focus of the lens.

Where is the image formed by the lens?

1. at Q

2. between F and Q

3. between F and O

4. to the right of Q

40 / 40

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. 0.5 ohms

3. 1.5 ohms

4. 2.3 ohms

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.