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2.3 Transfer of thermal energy

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Question 167

On a hot summer day, a metal park bench P P\,P and a wooden park bench Q Q\,Q are both at the same temperature, which is higher than human body temperature. Why does bench P P\,P feel much hotter to the touch than bench QQQ?

A

PPP is a better thermal conductor than QQQ.

B

PPP is a better thermal insulator than QQQ.

C

PPP absorbs thermal radiation much faster than QQQ.

D

PPP has a higher density than QQQ.

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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