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2.3 Transfer of thermal energy

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Question 152

Copper is a much better conductor of thermal energy than glass.

Which statement explains this?

A

Delocalized electrons in copper can move from one part of the metal to another. Electrons in glass cannot move in this way.

B

Electrons in copper vibrate with more energy than those in glass.

C

Positive ions in copper can move from one part of the metal to another. Positive ions in glass cannot move in this way.

D

Positive ions in copper vibrate with more energy than those in glass.

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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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