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
44 exam-style questions on CIE IGCSE Physics 2.1.1 States of matter and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.