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2.3 Transfer of thermal energy

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Question 123

Which statement about the transfer of thermal energy is correct?

A

Thermal conduction in solids occurs when heated molecules migrate from one end of the solid to the other.

B

Convection can occur in solids, liquids, and gases.

C

Thermal radiation consists of electromagnetic waves and does not require a physical medium to travel.

D

A black, dull surface is a poor emitter of thermal energy compared to a shiny, white surface.

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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