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1.2 Conservation and dissipation of energy

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Question 18

An electric heater is plugged into the mains and switched on to warm a cold room. Which is the useful energy transfer?

[1]
A

by heating from the warm room to the colder air outside

B

electrically from the mains to the kinetic store of the heater

C

from the chemical store of the heater to the thermal store of the room

D

electrically from the mains to the thermal store of the room

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.

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