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CAIE IGCSE Physics Factors Affecting Evaporation

Practise predicting and explaining how liquid temperature, exposed surface area and moving air change evaporation in dishes, puddles, clothes and skin.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • link higher temperature to more particles having enough kinetic energy to escape
  • explain that a larger surface exposes more particles able to leave the liquid
  • explain that moving air removes vapour and reduces particles returning to the surface

2.2.3.7—Temperature, surface area and air question 1

[Maximum number: 2]

Fig. 3.1 and Fig. 3.2 show how a puddle of water changes on a warm windy day.

Fig. 3.1

Fig. 3.1

Fig. 3.2

Fig. 3.2

State and explain one change in the weather that would cause the volume of water in the puddle to decrease more slowly.
statement
explanation

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