Which row describes the arrangement and the motion of the particles in a solid?
| Arrangement | Motion | |
|---|---|---|
| A | tightly packed in a regular lattice | vibrate about fixed positions |
| B | tightly packed in a regular lattice | move freely around each other |
| C | far apart, randomly arranged | vibrate about fixed positions |
| D | far apart, randomly arranged | move freely around each other |
A
B
C
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.