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2.2 Thermal properties and temperature

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Question 67

An athlete sprays a fine mist of water onto their arms after a strenuous run.

Here are three statements about the effects as the water evaporates:

  • P: The water requires thermal energy to evaporate.
  • Q: The water absorbs this thermal energy from the athlete's skin.
  • R: The temperature of the athlete's skin decreases.

Which statements are correct?

A

PPP and QQQ only

B

PPP and RRR only

C

QQQ and RRR only

D

PPP, QQQ and RRR

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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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