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2.3 Transfer of thermal energy

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Question 11

The air in a room near a cold window pane cools down, causing its temperature to decrease. Which row describes the change in the density of this cooler air and the primary method of thermal energy transfer that occurs as a result?

A

density decreases; conduction

B

density decreases; convection

C

density increases; conduction

D

density increases; convection

Markscheme

2.3 Transfer of thermal energy Questions

  1. IGCSE
  2. /Physics
  3. /2.3 Transfer of thermal energy

301 exam-style questions on CIE IGCSE Physics 2.3 Transfer of thermal energy, covering 2.3.1a Thermal conductors and thermal insulators, 2.3.1b Explaining thermal conduction, 2.3.2 Convection, 2.3.3a Thermal radiation, 2.3.3b Surface colour and texture, 2.3.3c Rate of emission and absorption of radiation, and 2.3.4 Consequences of thermal energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.

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