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8.3 Power and efficiency

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Question 7

A powered conveyor carries parcels for 40 s while producing a useful power output of 350 W.

What is the useful work done by the conveyor during this time?

[1]
A

390 J390\ \mathrm{J}390 J

B

14 000 J14\,000\ \mathrm{J}14000 J

C

1400 J1400\ \mathrm{J}1400 J

D

8.75 J8.75\ \mathrm{J}8.75 J

Markscheme

8.3 Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /8.3 Power and efficiency

128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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