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2.3 Transfer of thermal energy

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Question 112

A room has a heater placed near the floor. The heater warms the air near it.

What happens to the density of the air as it warms, and how does it move?

A

Decreases, moves up

B

Decreases, stays at the bottom

C

Increases, moves up

D

Increases, stays at the bottom

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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