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14.2 Specific heat capacity and latent heat

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Question 16

Four machine components of equal mass are each made from a different material. A cooling unit removes the same amount of energy from each component, and none of them changes state.

ComponentSpecific heat capacity of material in J/kg ∘C\mathrm{J/kg}\ ^\circ\mathrm{C}J/kg ∘C
Motor housing900
Pump rotor450
Gear wheel380
Brake plate600

Which component has the largest fall in temperature?

[1]
A

The pump rotor

B

The gear wheel

C

The brake plate

D

The motor housing

Markscheme

14.2 Specific heat capacity and latent heat Questions

  1. GCSE
  2. /Physics
  3. /14.2 Specific heat capacity and latent heat

110 exam-style questions on Edexcel GCSE Physics 14.2 Specific heat capacity and latent heat, covering 14.2.1 Heating, temperature and changes of state, 14.2.2 Specific heat capacity and specific latent heat, 14.2.3 Specific heat capacity calculation, 14.2.4 Specific latent heat calculation, and 14.2.5 Reducing energy transfer through thermal insulation. Each one has a worked solution and a mark scheme showing where the marks go.

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