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2.3 Transfer of thermal energy

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Question 30

On a bright, sunny day, a dark-coloured slate roof and the air directly above it both increase in temperature.

a.

Explain why the temperature of the dark slate roof increases.

[2]
b.

State the method of thermal energy transfer from the hot slate roof to the air in direct contact with it.

[1]
c.

State the main method of thermal energy transfer from the air in direct contact with the roof to the rest of the surrounding air.

[1]
d.

Explain why the temperature of the slate roof is significantly higher than the temperature of the surrounding air.

[2]
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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