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An engineer carries out an experiment to determine the specific heat capacity of a copper crucible.

a.

The engineer measures the temperature of the crucible using a digital temperature probe. The probe's screen displays readings to one decimal place, such as 24.3∘C24.3^\circ\text{C}24.3∘C. What is the resolution of this temperature probe?

[1]
b.

To minimise thermal energy transfers to the surroundings, the copper crucible is encased in a ceramic insulating jacket. The combined mass of the crucible and the insulating jacket is measured to be 2.45 kg2.45\text{ kg}2.45 kg. The mass of the copper crucible alone is 1.85 kg1.85\text{ kg}1.85 kg. Calculate the mass of the insulating jacket.

[2]
c.

During a heating test:

  • The electrical energy transferred to the copper crucible was 28 490 J28\,490\text{ J}28490 J
  • The mass of the copper crucible was 1.85 kg1.85\text{ kg}1.85 kg
  • The temperature of the crucible increased by 40∘C40^\circ\text{C}40∘C

Calculate the specific heat capacity of copper from these experimental results. Choose and 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]

Internal energy and energy transfers Questions

Practise AQA GCSE Physics Internal energy and energy transfers with exam-style questions for Foundation and Higher tier. 48 questions covering Internal energy, Temperature changes in a system and specific heat capacity, and Changes of state and specific latent heat, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Internal energy and energy transfers Questions

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