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2.2 Thermal properties and temperature

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Question 376

When railway tracks are constructed, small gaps are left between the steel rails.

Why are these gaps left?

A

Steel rails contract on hot days.

B

Steel rails expand on hot days.

C

The gaps expand on hot days.

D

Steel rails expand on cold days.

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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