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2.3 Transfer of thermal energy

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Question 37

An insulated container is designed to keep a hot beverage warm by minimizing the rate at which thermal energy is radiated from its outer surface.

Which surface texture and colour would be best for the outer surface of this container?

A

dull black

B

shiny black

C

dull white

D

shiny white

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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