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2.3.1a Thermal conductors and thermal insulators

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Question 6

One end of an aluminum rod is heated. Which of the following describes the mechanism or mechanisms responsible for the transfer of thermal energy to the cooler end?

A

The physical migration of high-energy aluminum ions along the rod only.

B

The vibrations of aluminum ions in the lattice structure only.

C

The diffusion of free (delocalized) electrons along the rod only.

D

Both the lattice vibrations of aluminum ions and the diffusion of free (delocalized) electrons along the rod.

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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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