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2.3 Transfer of thermal energy

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Question 25

Which statement about thermal conduction is not correct?

A

It is the primary method of thermal energy transfer in solid materials.

B

It occurs when faster-vibrating particles transfer energy to neighboring particles.

C

In metals, it is assisted by the rapid movement of free (delocalized) electrons.

D

It can readily take place through a vacuum.

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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