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) An image is formed in a plane mirror.

1. C

2. B

3. D

4. A

2 / 40

2) 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. 2R

2. 8R

3. 4R

4. R/2

3 / 40

3) 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. A

4. B

4 / 40

4) 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. 800 mm

3. 1000 mm

4. 720 mm

5 / 40

5) 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. B

2. A

3. C

4. D

6 / 40

6) A consultant for a cookware manufacturer wishes to make a pan that will have two features:

(i) absorb energy from a flame as quickly as possible, and

(ii) has a cooking surface that stays as hot as possible when heated.

Which pan would be recommended?

1. outer and inner surface shiny

2. outer surface shiny and inner surface black

3. outer surface black and inner surface shiny

4. outer and inner surface black

7 / 40

7) 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

8 / 40

8) A detector of ionising radiation gives a background reading of 20 counts/minute.
A radioactive isotope with a half-life of 2.0 days is brought near to the detector. The reading on the detector increases to 100 counts/minute.
How long does it take for the reading on the detector to decrease to 40 counts/minute?

1. 5.0 days

2. 10 days

3. 2.0 days

4. 4.0 days

9 / 40

9) 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. B

4. D

10 / 40

10) 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 d.

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

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

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

11 / 40

11) 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.

12 / 40

12) 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

13 / 40

13) Which statement about electromagnetic waves is correct?

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

2. Microwaves are used in satellite communications.

3. Visible light can damage human proteins and DNA.

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

14 / 40

14) 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. 2.2 kW

2. 1.6 kW

3. 64 kW

4. 160 kW

15 / 40

15) 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. 3000 J

2. 30 J

3. 300 J

4. 30000 J

16 / 40

16) The following circuit is set up

What is the reading on the ammeter?

1. 3.0 A

2. 0.33 A

3. 0.9 A

4. 1.5 A

17 / 40

17) 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 right 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 left because it is in a magnetic field.

18 / 40

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

Which words correctly complete blanks 1 and 2?

1. B

2. D

3. C

4. A

19 / 40

19) 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 1.5 times as deep as the original location.

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

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

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

20 / 40

20) A force of 400 N is applied on a crate of weight 500 N along a ramp as shown in the diagram. The crate moves a distance of 5.0 m at constant speed.

1. B

2. D

3. C

4. A

21 / 40

21) 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 are in continuous random motion.

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 move more quickly when they are heated.

22 / 40

22) 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. A

3. B

4. C

23 / 40

23) 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. 0.50 m/s^2

3. 0.25 m/s^2

4. 1.0 m/s^2

24 / 40

24) 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. I and III only

2. II and IV only

3. I, II and IV only

4. all the above

25 / 40

25) 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. 1.3

2. 1.2

3. 1.7

4. 1.6

26 / 40

26) 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. 32 ohms

2. 64 ohms

3. 8 ohms

4. 16 ohms

27 / 40

27) 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. 6.0 m

2. 12.0 m

3. 18.0 m

4. 9.0 m

28 / 40

28) A rubber ducky is released from the bottom of a pool of water. Almost immediately, it rises at a constant speed to reach the surface of the water. Which of the following best describes the resultant force acting on the rubber ducky?

1. upwards and greater than the rubber ducky’s weight

2. zero

3. upwards and less than the rubber ducky’s weight

4. upwards and equal to the rubber ducky’s weight

29 / 40

29) 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

30 / 40

30) 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. C

2. B

3. A

4. D

31 / 40

31) The diagram shows the rest position of a balancing toy near the edge of a table. Which position is most likely to be the center of gravity of the toy?

1. B

2. D

3. C

4. A

32 / 40

32) 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. 12 m

3. 48 m

4. 6.0 m

33 / 40

33) 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. 30 N

3. 80 N

4. 0 N

34 / 40

34) 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. C

2. B

3. D

4. A

35 / 40

35) A magnetic field is produced when a current flows through a straight wire XY. Which of the following correctly shows the magnetic field pattern produced by wire XY?

1. D

2. C

3. A

4. B

36 / 40

36) 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.

37 / 40

37) The diagram shows a manometer containing mercury that is sealed at one end.

What happens to the height h when the manometer is taken to the top of a mountain?

1. It increases, because atmospheric pressure increases.

2. It decreases, because atmospheric pressure decreases.

3. It increases, because atmospheric pressure decreases.

4. It decreases, because atmospheric pressure increases.

38 / 40

38) 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) and (3) only

3. (1) only

4. (2) only

39 / 40

39) 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. 1000 N

2. 900 N

3. 100 N

4. 600 N

40 / 40

40) In the circuit shown, R1 and R2 are identical resistors.

Which changes to the electrical components X and Y will increase the reading of the ammeter by the greatest amount?

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.