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Efficiency past paper questions

O Level Physics 5054 · Energy, work and power. 1 Define efficiency as: (a) (%) efficiency = (useful energy output) (total energy input) ( × 100%) (b) (%) efficiency = (useful power output) (total power input) ( × 100%) and recall and use these equations

It came up in 22 of 72 papers, for about 2 marks a paper when it does. It last came up in October/November 2025.

Often set with Energy, Work, Uses of electricity, Specific heat capacity.

22 questions, newest first

1. 5054/12/O/N/25 Question 17 · 1 mark
2. 5054/21/O/N/25 Question 2 part (b(ii)) · 1 mark
3. 5054/41/O/N/25 Question 1 part (d(iii)) · 1 mark
4. 5054/21/M/J/25 Question 3 parts (b(i)) (c) · 3 marks
5. 5054/22/M/J/25 Question 2 part (b) · 2 marks
6. 5054/11/O/N/24 Question 18 · 1 mark
7. 5054/12/O/N/24 Question 11 · 1 mark
8. 5054/11/M/J/24 Question 13 · 1 mark
9. 5054/12/M/J/24 Question 16 · 1 mark
10. 5054/12/O/N/23 Question 14 · 1 mark
11. 5054/21/M/J/23 Question 8 parts (a(i)) (a(ii)) (b) · 4 marks
12. 5054/11/O/N/22 Question 16 · 1 mark
13. 5054/12/O/N/22 Question 17 · 1 mark
14. 5054/11/M/J/22 Question 11 · 1 mark
15. 5054/12/M/J/22 Question 15 · 1 mark
16. 5054/12/O/N/21 Question 13 · 1 mark
17. 5054/11/M/J/21 Question 14 · 1 mark
18. 5054/22/M/J/21 Question 9 parts (c(ii)) (c(iii)) (c(iv)) · 6 marks
19. 5054/11/O/N/20 Question 19 · 1 mark
20. 5054/22/O/N/20 Question 2 parts (b(i)) (b(ii)) · 2 marks
21. 5054/21/M/J/20 Question 8 part (a(ii)) · 2 marks
22. 5054/22/M/J/20 Question 3 part (c(ii)) · 2 marks

More in Energy, work and power: Energy, Work, Energy resources, Power.

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