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2.3 Transfer of thermal energy

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Question 131

Four rods of equal length and diameter are made of different metals, A, B, C, and D. One end of each rod is heated in the same way. The table below shows the time taken for the temperature at the other end of each rod to rise by 2.0∘C2.0^\circ\text{C}2.0∘C.

MetalTime taken / s
A120
B85
C150
D95

Which metal is the poorest conductor of thermal energy?

A

metal A

B

metal B

C

metal C

D

metal D

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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