Which statement best explains why a liquid is much more difficult to compress than a gas?
Liquid particles are larger than gas particles.
The particles in a liquid are already very close together with very little empty space between them.
Liquid particles are held in fixed positions and cannot move.
There are no attractive forces between liquid particles.
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.