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2.3 Transfer of thermal energy

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Question 96

A person uses an outdoor electric patio heater to warm up on a cold night.

Which waves carry the most thermal energy (heat) to the person, and are these waves electromagnetic?

A

Wave type: infra-red; Electromagnetic: no

B

Wave type: infra-red; Electromagnetic: yes

C

Wave type: visible light; Electromagnetic: no

D

Wave type: visible light; Electromagnetic: yes

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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