Skip to content

Course home

Sign up

8.3 Power and efficiency

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
Question 64
H

A pump raises 200 kg of water through a vertical height of 9.0 m each minute. Its efficiency is 0.60. Gravitational field strength is 10 N/kg. What is its mean input power?

[1]
A

500 W500\ \mathrm{W}500 W

B

30 000 W30\,000\ \mathrm{W}30000 W

C

180 W180\ \mathrm{W}180 W

D

300 W300\ \mathrm{W}300 W

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.

Question bank