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2.3 Transfer of thermal energy

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Question 124

A double-walled thermos flask has a vacuum between its inner and outer walls.

Which method(s) of thermal energy transfer can still travel across this vacuum gap?

A

conduction only

B

convection only

C

radiation only

D

conduction and convection only

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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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