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2.3 Transfer of thermal energy

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Question 61

On a warm day, a metal handrail and a wooden handrail are both at the same temperature of 40∘C40^\circ\text{C}40∘C. When touched, the metal handrail feels much hotter than the wooden handrail.

Which statement explains this observation?

A

Metal is a worse thermal conductor than wood.

B

Metal is a better thermal conductor than wood.

C

Metal is a worse absorber of infra-red radiation than wood.

D

Metal is a better absorber of infra-red radiation than wood.

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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