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2.3 Transfer of thermal energy

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Question 200

Emergency survival blankets (space blankets) are made of a thin, highly reflective silver-coloured material. What is the main reason for this?

A

Silver-coloured surfaces are good reflectors of infrared radiation.

B

Silver-coloured surfaces are good conductors of infrared radiation.

C

Silver-coloured surfaces are good absorbers of infrared radiation.

D

Silver-coloured surfaces are good emitters of infrared radiation.

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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