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2.3 Transfer of thermal energy

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Question 212

An air-conditioning unit is installed in a room to keep the air cool. Where is the most effective position to install the air-conditioning unit to cool the entire room as efficiently as possible?

A

Near the floor.

B

Near the ceiling.

C

Under a desk in the corner.

D

Halfway up one of the walls.

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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