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2.3 Transfer of thermal energy

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Question 185

An air-conditioning unit is installed in a room to cool the air.

Where should the air-conditioning unit be placed to cool the entire room as effectively as possible?

A

near the floor

B

near the ceiling

C

on the wall at mid-height

D

at the bottom corner of the room

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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