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2.2 Thermal properties and temperature

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Question 252

Two solid spheres, P P\,P and QQQ, are initially at room temperature. Each sphere is heated so that its temperature rises by 15 ∘C15\text{ }^\circ\text{C}15 ∘C. The spheres are then allowed to cool back down to room temperature.

Sphere P P\,P has a smaller thermal capacity than sphere QQQ.

Which sphere requires more thermal energy to be heated by 15 ∘C15\text{ }^\circ\text{C}15 ∘C, and which sphere releases more thermal energy as it cools back to room temperature?

A

More energy for heating: PPP | More energy released: PPP

B

More energy for heating: PPP | More energy released: QQQ

C

More energy for heating: QQQ | More energy released: PPP

D

More energy for heating: QQQ | More energy released: QQQ

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2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

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