Which statement describes what happens to the particles of a gas when the gas is cooled?
The particles move more quickly.
The particles move more slowly.
The particles increase in size.
The particles move farther apart.
151 exam-style questions on CIE IGCSE Physics 2.1.2a Particle structure and motion in solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.