Which row correctly describes the movement of particles in liquids and gases?
| Liquids | Gases | |
|---|---|---|
| A | Vibrate about fixed positions | Move rapidly in random directions |
| B | Slide past each other | Vibrate about fixed positions |
| C | Slide past each other | Move rapidly in random directions |
| D | No movement | Slide past each other |
Row A
Row B
Row C
Row D
321 exam-style questions on CIE IGCSE Physics 2.1 Kinetic particle model of matter, covering 2.1.1 States of matter and changes of state, 2.1.2a Particle structure and motion in solids, liquids and gases, 2.1.2b Gas pressure and particle collisions, 2.1.2c Brownian motion, 2.1.3a The absolute scale of temperature, and 2.1.3b Pressure, volume and temperature of a gas. Each one has a worked solution and a mark scheme showing where the marks go.