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2.3 Transfer of thermal energy

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Question 29

Four rods of equal dimensions are made from different materials, W, X, Y, and Z. Each rod is heated at one end in an identical manner. The time taken for the temperature at the opposite end of each rod to rise by 2.0∘C2.0^\circ\text{C}2.0∘C is recorded as follows:

  • Material W took 42 s
  • Material X took 58 s
  • Material Y took 28 s
  • Material Z took 35 s

Which material is the best conductor of thermal energy?

A

Material W

B

Material X

C

Material Y

D

Material Z

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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