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2.3 Transfer of thermal energy

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Question 27

One end of an aluminum rod is heated.

What is a main method by which thermal energy is transferred through the aluminum rod?

A

Free electrons transfer thermal energy by moving from the cooler end to the hotter end.

B

Free electrons transfer thermal energy by moving from the hotter end to the cooler end.

C

Aluminum ions move from the cooler end to the hotter end.

D

Aluminum ions move from the hotter end to the cooler end.

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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