CAIE IGCSE Physics Temperature and Particle Energy

Practise describing a temperature change through average particle kinetic energy and distinguish this contribution from potential energy in total internal energy.

Exam points

state that rising temperature means greater average kinetic energy of the particles
describe cooling as reduced average particle kinetic energy and lower internal energy
identify internal energy as the total kinetic and potential energy of all particles

[Maximum number: 1]

The temperature of the air in a sealed glass container is increased.

Explain, in terms of molecules, why the internal energy of the air increases.

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2.2.2.2—An increase in temperature of an question 1