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2.3 Transfer of thermal energy

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Question 70

Which statement about the transfer of thermal energy is correct?

A

Conduction is the transfer of thermal energy through fluids by the macroscopic movement of currents.

B

Convection can take place in solids if they are heated to a sufficiently high temperature.

C

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

D

Shiny, silver-coloured surfaces are excellent absorbers of thermal radiation.

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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