Which statement best explains why a liquid is extremely difficult to compress into a smaller volume compared to a gas?
The particles in a liquid are already very close together with very little empty space between them.
The particles in a liquid are held in fixed, rigid positions.
The forces of attraction between particles in a liquid are completely negligible.
The individual particles in a liquid easily shrink when pressure is applied.
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.