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2.2 Thermal properties and temperature

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Question 90
a.

In terms of atoms or molecules, explain why a solid metal rod increases in length (expands) when its temperature increases.

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b.

Identify one practical problem in engineering or construction caused by the thermal expansion or contraction of a solid material. Explain how this problem is resolved.

[2]
c.

Identify one useful application of the thermal expansion or contraction of a solid material. Explain how this property is used in your chosen application.

[2]
Markscheme

2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

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