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2.2 Thermal properties and temperature

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Question 18

An athlete sweats during a workout to help regulate their body temperature. Here are three statements about this process:

X: The sweat requires thermal energy to evaporate.

Y: The sweat absorbs thermal energy from the athlete's skin.

Z: The skin of the athlete is cooled as a result.

Which statements are correct?

A

XXX and YYY only

B

XXX and ZZZ only

C

YYY and ZZZ only

D

XXX, YYY and ZZZ

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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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