Power: past paper questions

Where the questions come from

• Question 9May/June 2026, paper 12Multiple choice1 mark

  Which statement is correct?

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• Question 4Oct/Nov 2025, paper 31Structured8 marksHas a diagram

  Fig. 4.1 shows a student doing some repetitive ‘step-up’ exercises. In each ‘step-up’, the student steps up from the floor onto a box and then back down to the floor. The height of the box is $0.40\text{ m}$.

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• Question 2Oct/Nov 2025, paper 33Structured10 marksHas a diagram

  A builder uses a metal bar to raise one end of the rock. Fig. 2.1 (not to scale) Calculate the moment of the $320\text{ N}$ force about the pivot.

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• Question 10Oct/Nov 2024, paper 12Multiple choice1 mark

  Which statement about power is correct?

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• Question 10Oct/Nov 2023, paper 12Multiple choice1 mark

  An electric car is charged overnight. In $8.0\text{ hours}$, $180\text{ MJ}$ of energy is transferred. What is the power of the charger?

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• Question 10Oct/Nov 2024, paper 13Multiple choice1 mark

  What is the relationship between the power of a motor, the force exerted by the motor, the distance moved by the force and the time taken?

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• Question 10Oct/Nov 2024, paper 22Multiple choice1 markHas a diagram

  An electrician uses a lifting machine, as shown. The lifting machine takes $4.5\text{ s}$ to lift the electrician a vertical height of $3.2\text{ m}$. The mass of the electrician is $72\text{ kg}$.

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• Question 3May/June 2026, paper 42Structured7 marksHas a diagram

  Figure 3.1 shows an electric shower. The temperature of water as it enters the shower is 15 °C. The water is heated in the shower.

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• Question 4Oct/Nov 2024, paper 31Structured9 marksHas a diagram

  Fig. 4.1 shows the energy transfers in a lamp. State the value of the wasted output energy.

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• Question 4May/June 2026, paper 43Structured7 marksHas a diagram

  Figure 4.1 shows a pan of water on a hotplate. The mass of water in the pan is $200\text{ g}$. The specific heat capacity of water is $4.2\text{ J}\mathrm{/}(\text{g}{}^{\circ }\mathrm{C})$.

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• Question 7May/June 2024, paper 13Multiple choice1 mark

  Four electric motors do the same quantity of work when they lift a weight of $10\text{ N}$ through the same distance. The times taken by each motor to lift the weight are shown. What is the time taken by the motor which produces the most power?

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• Question 2Oct/Nov 2023, paper 33Structured7 marksHas a diagram

  A farmer uses a rope to lift a barrel of fruit from the ground to a platform, as shown in Fig. 2.1. The farmer lifts the barrel of fruit at a constant speed. State the energy store of the barrel of fruit that increases as the barrel rises.

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• Question 12May/June 2023, paper 12Multiple choice1 mark

  Which two physical quantities must be used to calculate the power developed by a student running up a flight of steps?

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• Question 12May/June 2023, paper 13Multiple choice1 mark

  The engine of a motor vehicle develops a large power. Which statement is correct?

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• Question 4May/June 2023, paper 31Structured9 marksHas a diagram

  A student uses an electric motor to lift a load. Fig. 4.1 shows the arrangement. The motor exerts a force of 25 N on the load.

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