Skip to content

Course home

Sign up

1.2 Conservation and dissipation of energy

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536
Question 2

A ventilation fan has a total power input of 500 W and an efficiency of 64%.

What is the useful power output of the ventilation fan?

[1]
A

320 W

B

180 W

C

781 W

D

3.2 W

Markscheme

1.2 Conservation and dissipation of energy Questions

  1. GCSE
  2. /Physics
  3. /1.2 Conservation and dissipation of energy

104 exam-style questions on AQA GCSE Physics 1.2 Conservation and dissipation of energy, covering 1.2.1 Energy transfers in a system and 1.2.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank