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

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1) 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. 24 m

2. 6.0 m

3. 48 m

4. 12 m

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2) 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 depth at the new location is 0.75 times as deep as the original location.

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

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

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

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3) 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, 2 and 3

2. 1 and 3 only

3. 2 and 3 only

4. 1 and 2 only

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4) 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. 2 kWh

2. 4 kWh

3. 10 kWh

4. 20 kWh

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5) A solar panel is used to recharge a battery. The solar panel produces 0.80 W of electrical
power. The panel is 20% efficient.

What is the power input of the sunlight onto the solar panel?

1. 16 W

2. 8 W

3. 0.16 W

4. 4 W

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6) 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. 5.00 s

2. 1.25 s

3. 10.00 s

4. 0.325 s

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7) 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. 12 V

2. 17 V

3. 10 V

4. 7.0 V

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8) 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 variable resistor

2. a thermistor

3. a transformer

4. a relay

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9) The diagram shows a water wave in a ripple tank.

The wave has a speed of 0.15 m / s at R.

The wave crosses a boundary PQ where the distance between troughs changes from 3.0 cm to 1.5 cm.

What is the velocity of the wave at point S

1. 0.45 m / s

2. 0.15 m / s

3. 0.075 m / s

4. 0.30 m / s

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10) 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 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.

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11) The diagram below shows a manometer.

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

1. 80 mmHg

2. 200 mmHg

3. 120 mmHg

4. 550 mmHg

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12) 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 in solids is by means of density changes in the material.

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

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13) 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.

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14) 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. 67.5 cm

2. 32.5 cm

3. Cannot be found as tension in P is unknown

4. 57.5 cm

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15) Pendulum X makes 25 complete oscillations in 10 s. Pendulum Y makes 15 complete oscillations in 15 s. Both pendulums were displaced by a small angle before their oscillations.

Which statement must be true?

1. Pendulum Y has a shorter period than pendulum X.

2. The mass of the bob of pendulum Y is smaller than that of pendulum X.

3. The string of pendulum Y is longer than that of pendulum X.

4. The angle of swing of release for pendulum Y is smaller than that of pendulum X.

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16) Which graph shows the total external pressure acting on a submarine at different depths below the surface of the sea?

1. A

2. C

3. B

4. D

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17) The diagram shows two insulated wires, P and Q, each with the same amount of current flow.

Which region A, B, C or D has the strongest magnetic field out of the paper?

1. D

2. B

3. C

4. A

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18) The diagram shows a transverse wave travelling along a rope at the time t = 0 s. A point on the rope is labelled X.

The period of the wave is 5.0 s.

1. C

2. A

3. D

4. B

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19) A box of mass 3.0 kg is initially at rest on a horizontal rough surface. Three parallel horizontal forces of magnitude 2.0 N, 3.0 N and 4.0 N act on the box . Friction that acts between the box and the ground is 1.5 N.

What is the minimum acceleration of the box?

1. 2.5 m/s^2

2. 1.0 m/s^2

3. 0.25 m/s^2

4. 0.50 m/s^2

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

Which statement is correct?

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

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

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

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

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21) 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. C

2. D

3. B

4. A

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22) A student investigates the changes that take place as molten wax solidifies.

Which of the following correctly describe these changes?

1. No transfer of energy but a change in temperature

2. A transfer of energy and a change in temperature

3. A transfer of energy but no change in temperature

4. No transfer of energy and no change in temperature

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

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

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

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

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24) 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. 0m/s^2

2. 4.0m/s^2

3. 8.0m/s^2

4. 6.0m/s^2

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25) A gas is heated in a rigid sealed container. Which quantity does not change?

1. The frequency of collisions on the walls of the container by the gas particles.

2. The average speed of the gas particles.

3. The average force exerted on the walls of the container by the gas particles.

4. The average distance between the gas particles.

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26) 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. 2.2× 10^8 m / s

3. 2.1 × 10^8 m / s

4. 3.0 × 10^8 m / s

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27) 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. B

2. C

3. D

4. A

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28) 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. I and III

2. II and III

3. I only

4. III only

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29) The diagram below shows a water manometer used to measure the pressure inside a gas pipe. The density of water is 1000 kg m-3 and gravitational field strength is 10 N kg-1.

Find the pressure of the gas supply in Pa.

1. 520 Pa

2. 380 Pa above atmospheric pressure

3. 380 Pa

4. 520 Pa above atmospheric pressure

30 / 40

30)

1. D

2. C

3. A

4. B

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31) 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 remains unchanged while wavelength decreases.

2. Both frequency and wavelength decrease.

3. Frequency decreases while wavelength remains unchanged.

4. Both frequency and wavelength remain unchanged.

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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. moves downwards

2. moves out of the plane of paper

3. does not move

4. moves upwards

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33) 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 each other more frequently.

2. They hit the container more frequently.

3. They expand.

4. They vibrate faster.

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34) The potential difference across a metal wire is kept constant. The length l and the diameter d of the wire are both varied. The type of metal is kept the same. How is the resistance of the wire related to l and d?

1. It is inversely proportional to l and directly proportional to d2.

2. It is directly proportional to l and inversely proportional to d.

3. It is inversely proportional to l and directly proportional to d.

4. It is directly proportional to l and inversely proportional to d2.

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35) 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. 300 J

2. 30 J

3. 30000 J

4. 3000 J

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36) Which statement about electromagnetic waves is correct?

1. Infrared rays are used in sunbeds for artificial sun tanning.

2. X-rays are used to check for counterfeit notes.

3. Microwaves are used in satellite communications.

4. Visible light can damage human proteins and DNA.

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37) 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 less energy than others

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

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

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

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38) The diagram represents the surface of a transparent liquid. Two rays of light are travelling within the liquid. They both reach the surface. The path of each ray is shown.

What is the refractive index of this liquid?

1. 1.2

2. 1.6

3. 1.7

4. 1.3

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39) 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. 2.0 N

2. 12 N

3. 4.0 N

4. 8.0 N

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40)

1. C

2. D

3. B

4. A

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.