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2.3.1a Thermal conductors and thermal insulators

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Question 44

Unlike non-metal solids, metals are exceptionally good conductors of thermal energy.

Which statement correctly describes the difference in the mechanisms of thermal conduction between metals and non-metals?

A

Non-metals conduct thermal energy primarily through free electron transfer, whereas metals rely only on lattice vibrations.

B

Metals conduct thermal energy through both free electron transfer and lattice vibrations, whereas non-metals conduct primarily through lattice vibrations.

C

Both metals and non-metals conduct thermal energy by free electron transfer only.

D

Metals conduct thermal energy by lattice vibrations only, while non-metals conduct by both electron transfer and lattice vibrations.

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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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