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2.3 Transfer of thermal energy

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Question 102

One end of an iron rod is heated to a high temperature.

Which mechanism is responsible for the transfer of thermal energy to the cooler end of the rod?

A

the lattice vibrations of iron ions and the movement of free electrons along the rod

B

the movement of high-energy iron ions along the rod

C

the lattice vibrations of iron ions only

D

the movement of free electrons along the rod only

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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