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1.2 Conservation and dissipation of energy

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Question 5

An electric mixer uses gears to turn its mixing attachment. Grease is then applied to the gears. Which change does the grease cause when the mixer is used?

[1]
A

A greater proportion of the input energy is transferred to the thermal store of the mixer

B

A greater proportion of the input energy is transferred to the kinetic store of the mixing attachment

C

The total amount of energy transferred to the mixer from the supply increases

D

A greater proportion of the input energy is transferred by sound to the surroundings

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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