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2.3 Transfer of thermal energy

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Question 227

A person holds a plastic cup and pours hot coffee into it. Why does it take a few seconds before their hand starts to feel hot?

A

Plastic is a poor conductor of heat.

B

Coffee is a poor conductor of heat.

C

Plastic is a better conductor of heat than coffee.

D

Coffee is a better conductor of heat than plastic.

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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