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2.3.1a Thermal conductors and thermal insulators

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Question 17

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

Which mechanism(s) is/are responsible for the conduction of thermal energy to the cool end of the rod?

A

The vibrations of iron ions in the lattice only

B

The diffusion of free electrons only

C

Both the vibrations of iron ions in the lattice and the diffusion of free electrons

D

The bulk movement of iron ions from the hot to the cool end

Markscheme

2.3.1a Thermal conductors and thermal insulators Questions

  1. IGCSE
  2. /Physics
  3. /2.3.1a Thermal conductors and thermal insulators

67 exam-style questions on CIE IGCSE Physics 2.3.1a Thermal conductors and thermal insulators. Each one has a worked solution and a mark scheme showing where the marks go.

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