Power: past paper questions
Real questions on power
The newest 20 of 41 written questions. Open one to see it on the real paper.
- 0625/42 · May/June 2026 · Q3a(iii)[2]
The energy in 3(a)(ii) is transferred to the water in 4.0 min. Calculate the power transferred to the water. power = W
See it on the paper → - 0625/32 · February/March 2026 · Q1b[3]
Figure 1.2 shows the empty trolley lying on the floor. 12 N pivot 0.90 m Figure 1.2 The student lifts the handle by applying a force of 12 N, as shown in Figure 1.2. Calculate the moment of the 12 N force about the pivot. moment = Nm handle
See it on the paper → - 0625/32 · February/March 2026 · Q3b[3]
The voltage output of the solar panel is 4.5 V. The current output from the solar panel is 0.62 A. Calculate the power output from the solar panel. power output = W
See it on the paper → - 0625/32 · February/March 2026 · Q3c[2]
State one advantage and one disadvantage, apart from cost, of using the solar panel to charge the mobile (cell) phone instead of using a mains power supply to recharge the battery. advantage
See it on the paper → - 0625/31 · October/November 2025 · Q4b[3]
Another student transfers 3600 J of energy in a time of 30 s. Calculate the student’s power when transferring this energy. student’s power = W
See it on the paper → - 0625/32 · October/November 2025 · Q3c(ii)[4]
The work done by the machine in (c)(i) takes 18 s. Calculate the power of the machine. Include the unit. power = unit
See it on the paper → - 0625/41 · October/November 2025 · Q3c(i)[2]
Calculate the output power of the cell. output power =
See it on the paper → - 0625/41 · October/November 2025 · Q3c(ii)[1]
State the meaning of the term kilowatt-hour (kWh).
See it on the paper → - 0625/41 · October/November 2025 · Q3c(iii)[3]
Energy is produced by each solar cell for an average of 6 hours per day. A household uses approximately 7400 kWh of electrical energy per year. Calculate the number of solar cells needed to produce energy for one household. Give your answer as a whole number of solar cells. number of solar cells =
See it on the paper → - 0625/31 · May/June 2025 · Q4a(ii)[2]
Describe one way in which energy is wasted as the electric motor lifts the load.
See it on the paper → - 0625/12 · October/November 2024 · Q10[1]
Which statement about power is correct?
See it on the paper → - 0625/43 · May/June 2024 · Q9b(ii)[3]
The charging plate in Fig. 9.1 has a useful output power of 15 W. The phone manufacturer claims that the battery can be charged to 50% capacity in less than 30 minutes. Show that this claim is true.
See it on the paper → - 0625/32 · February/March 2024 · Q4c[3]
The student uses the device for a time of 30 s. The energy input to the device is 5400 J. Calculate the power input to the device. power input = W
See it on the paper → - 0625/21 · October/November 2023 · Q10[1]
What is the power of the pump?
See it on the paper → - 0625/22 · October/November 2023 · Q10[2]
What is the power of the charger?
See it on the paper → - 0625/33 · October/November 2023 · Q2b(i)[3]
The output power of the machine is 75 W. The work done in lifting a barrel of fruit onto the platform is 450 J. Calculate the time taken for the machine to lift a barrel of fruit onto the platform. time = s
See it on the paper → - 0625/61 · October/November 2023 · Q1d[2]
Determine the gradient G of the graph.
See it on the paper → - 0625/11 · May/June 2023 · Q11[1]
What is the change in the gravitational potential energy store of the rock?
See it on the paper → - 0625/11 · May/June 2023 · Q12[1]
Which time is measured when the child’s useful power is greatest?
See it on the paper → - 0625/11 · May/June 2023 · Q21[1]
Which statement is correct?
See it on the paper →
What examiners said
Comprehensive responses • Most candidates were able to select the correct information from the question and diagram and then to substitute these values into a correct equation to calculate the moment of the force about the pivot as 10.8 Nm. Limited responses • Some candidates used an incorrect rearrangement of the equation for calculating work done. A common approach seen was dividing the lifting...
— Examiner report, February/March 2026, 0625/32 Q1(b) (Cambridge)
Comprehensive responses • Many candidates were able to select the correct information from the question and diagram and then to substitute these values into a correct equation to calculate the power output from the solar panel as 2.8 W. Limited responses • Some candidates rearranged the equation for calculating power output. A commonly seen approach was dividing the voltage output by the current...
— Examiner report, February/March 2026, 0625/32 Q3(b) (Cambridge)
Comprehensive responses • Many candidates displayed a good understanding of the advantages and disadvantages of the solar panel in terms of renewability, availability and environmental impact. Limited responses • Some candidates gave advantages that did not specifically address the solar panel shown in the diagram and were consequently too vague such as ‘environmentally-friendly’ or ecofriendly....
— Examiner report, February/March 2026, 0625/32 Q3(c) (Cambridge)
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