When they have energy. E.g. when they're heated.
faster. and matter then would move slower
faster
They move faster.
plasma
When matter is heated the molecules in it move faster.
When thermal energy is taken away from matter particles move more slowly. When thermal energy is added to matter particles move faster.
solid
Solid.
plasma
The state of matter with particles that move very rapidly is the gaseous state. In gases, particles are far apart and move freely, colliding with each other and the walls of their container at high speeds.
faster. and matter then would move slower
two states of matter that move freely are the liquids and plasma