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2.3 Transfer of thermal energy

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Question 106

A room is fitted with an air conditioning unit to cool the air inside. Where should the air conditioning unit be placed to cool all the air in the room as efficiently as possible?

A

near the floor

B

near the ceiling

C

at the middle of the wall, close to the floor

D

behind a heavy curtain

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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