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2.3 Transfer of thermal energy

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Question 241

A vacuum flask is designed to minimize thermal energy loss. It features a double-walled glass container with a vacuum in the space between the walls.

Which thermal energy transfer process or processes can still pass through this vacuum?

A

radiation only

B

conduction and convection

C

conduction only

D

convection and 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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