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2.3 Transfer of thermal energy

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Question 237

The metal surface of a cold drink can is very cold.

What happens to the warm air outside the can when it comes into contact with the cold can?

A

The density of the air decreases and the air falls.

B

The density of the air decreases and the air rises.

C

The density of the air increases and the air falls.

D

The density of the air increases and the air rises.

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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