Two states of matter are described as follows:
State A: The particles are closely packed together in a regular lattice pattern. They vibrate about fixed positions but cannot move from place to place.
State B: The particles are closely packed together but are free to move and slide past each other in a random way.
What are State A and State B?
State A: solid; State B: liquid
State A: solid; State B: gas
State A: liquid; State B: solid
State A: liquid; State B: gas
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.