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 below shows a manometer.

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

1. 120 mmHg

2. 80 mmHg

3. 550 mmHg

4. 200 mmHg

2 / 40

2) The displacement–time graph for an air particle in the path of a sound wave is shown.

Which property of the sound wave must be increasing?

1. frequency

2. wavelength

3. period

4. amplitude

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. 2.3 ohms

2. 1.5 ohms

3. 0.5 ohms

4. 1.0 ohms

4 / 40

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

1. manometer

2. measuring cylinder

3. digital calipers

4. digital micrometer

5 / 40

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

1. A

2. D

3. B

4. C

6 / 40

6) 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 surface of the liquid with more energy than others

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

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

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

7 / 40

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

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

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

8 / 40

8) A ray of light passes from glass to air. In glass, the speed of light is 1.8 × 10^8 m/s.

What is the critical angle for light passing from glass to air?

1. 18 degrees

2. 30 degrees

3. 42 degrees

4. 37 degrees

9 / 40

9) 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

10 / 40

10) In the circuit shown below, two resistors R1 and R2, a motor M and lamp L are connected to a suitable voltage supply.

1. If the motor is removed from the circuit and replaced with a wire, the current through each component would be two times the existing value.

2. The resistance of R1 is twice the resistance of R2.

3. The lamp has the least amount of current passing through compared to other components.

4. The motor uses the greatest amount of electrical energy per unit time.

11 / 40

11) 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) only

2. (2) only

3. (1) and (3) only

4. (1) and (2) only

12 / 40

12) 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. C

2. D

3. A

4. B

13 / 40

13) 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

14 / 40

14) A crate of oranges is pulled across a rough surface by a force, causing the crate to accelerate
at 1.5 m/s2. The combined mass of the crate and oranges is 24 kg.

1. B

2. A

3. D

4. C

15 / 40

15) A magnet is pushed slowly into a coil, and there is a current in the coil in the direction shown.

The magnet is then pulled out quickly from the same end of the coil.

What happens to the direction and the size of the current?

1. A

2. B

3. C

4. D

16 / 40

16) 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. A

2. C

3. D

4. B

17 / 40

17) 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. 12 N

2. 2.0 N

3. 8.0 N

4. 4.0 N

18 / 40

18) 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. 50 N

2. 80 N

3. 30 N

4. 0 N

19 / 40

19) 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

20 / 40

20) 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. D

3. B

4. A

21 / 40

21) A parachutist jumps off a plane. After 1.0 min, he opens the parachute and his velocity decreases at a decreasing rate. The following statements are possible explanations why the velocity of the parachutist decreases at a decreasing rate.

(I) The velocity decreases as such the air resistance acting on the parachute decreases.

(II) The tension exerting on the parachutist decreases.

(III) The force of the parachute acting on the air increases.

Which of the above statements is/are correct?

1. (II) only

2. (I) only

3. (III) only

4. (I) and (II) only

22 / 40

22) The diagram below shows a simple d.c. motor

Which of the following statements is/are correct?

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

II. The coil will rotate in a clockwise direction about the axle.

III. The split-ring commutator will reverse the direction of the current every 360°.

1. I only

2. I and II only

3. II and III only

4. I and III only

23 / 40

23) 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 upwards in fluids is mainly through the vibrations of neighbouring particles.

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

4. Transfer by radiation does not require a medium.

24 / 40

24) A student carries out some simple exercises. The gravitational field strength is 10 N/kg.
Which of the following exercises results in the most work done?

1. D

2. A

3. B

4. C

25 / 40

25) A small coil is connected to a galvanometer as shown below.

When the magnet is allowed to move towards the coil, which of the following statements
shows the current flow?

1. momentarily from Y to X

2. momentarily from X to Y

3. continuously from Y to X

4. continuously from X to Y

26 / 40

26) 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. A

2. D

3. C

4. B

27 / 40

27) A builder holding a brick of mass 3000 g drops the brick on his foot. What is a reasonable estimate of the change in the gravitational potential store of the brick?

1. 30 J

2. 30000 J

3. 300 J

4. 3000 J

28 / 40

28) 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. 20 oC

2. 15 oC

3. 60 oC

4. 30 oC

29 / 40

29) The following circuit is set up

What is the reading on the ammeter?

1. 1.5 A

2. 3.0 A

3. 0.9 A

4. 0.33 A

30 / 40

30) 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 right 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 left because it is in an electric field.

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

31 / 40

31) 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. 800 mm

4. 720 mm

32 / 40

32) 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. does not move

2. moves upwards

3. moves out of the plane of paper

4. moves downwards

33 / 40

33) An image is formed in a plane mirror.

1. D

2. C

3. B

4. A

34 / 40

34) The acceleration of free fall on a particular planet is 8.0 m s-2. An object was dropped from rest and hit the ground after 1.5 s.

Air resistance is negligible.

From what height was the object dropped?

1. 18.0 m

2. 9.0 m

3. 12.0 m

4. 6.0 m

35 / 40

35) A ray of light is incident on a plastic block in air, at an angle of incidence i. The refractive index of the plastic is n. The light ray refracts along the plastic-air boundary when it reaches X.

1. A

2. D

3. C

4. B

36 / 40

36) 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. 20 kWh

2. 4 kWh

3. 10 kWh

4. 2 kWh

37 / 40

37) A 10 kg object initially at rest is being pulled with a constant force of 8.0 N. The object moves a horizontal distance of 2.0 m, and its speed increases to 1.0 m/s. What is the work done against the resistive forces?

1. 21J

2. 11J

3. 5.5 J

4. 16J

38 / 40

38) A beam of radiation enters a region in which there is a very strong, uniform magnetic field directed into the page. All the equipment is in a vacuum.

The beam splits and the curved path and the straight path taken by the radiation in the magnetic field are shown on the diagram. What types of radiation are in the incident beam?

1. α-particles and β-particles only

2. β-particles and γ-rays only

3. α-particles, β-particles and γ-rays

4. α-particles and γ-rays only

39 / 40

39) 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 more quickly when they are heated.

2. They can be seen through a microscope.

3. They move because of collisions with smoke particles.

4. They are in continuous random motion.

40 / 40

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. C

2. B

3. A

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.