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3.2 Internal energy and energy transfers

3.2 Internal energy and energy transfers

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Question 19

A student carried out an experiment to determine the specific heat capacity of aluminium.

a.

The student measured the temperature of the block using a thermometer. The scale of the thermometer has division marks at every 1∘C1^{\circ}\text{C}1∘C. What is the resolution of this thermometer?

[1]
b.

To prevent heat loss, the aluminium block is wrapped in insulation. The total mass of the block and the insulation is measured as 1.35 kg. The mass of the aluminium block alone is 1.20 kg. Calculate the mass of the insulation.

[2]
c.

During the experiment:

  • The energy transferred to the aluminium block was 32 400 J32\,400\text{ J}32400 J
  • The mass of the aluminium block was 1.20 kg
  • The temperature increase of the block was 30∘C30^{\circ}\text{C}30∘C

Calculate the specific heat capacity of aluminium from these results. State the correct unit from the following options: J/kg\text{J/kg}J/kg, J/kg∘C\text{J/kg}^{\circ}\text{C}J/kg∘C, or J/∘C\text{J/}^{\circ}\text{C}J/∘C.

[4]
Markscheme

3.2 Internal energy and energy transfers Questions

  1. GCSE
  2. /Physics
  3. /3.2 Internal energy and energy transfers

37 exam-style questions on AQA GCSE Physics 3.2 Internal energy and energy transfers, covering 3.2.1 Internal energy, 3.2.2 Temperature changes in a system and specific heat capacity, and 3.2.3 Changes of state and specific latent heat. Each one has a worked solution and a mark scheme showing where the marks go.

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