WAEC - Physics (2002 - No. 4)
One common characteristics of solids, liquids and gasses is that?
all the three has fixed volume
their molecule have the same size
their molecules are always in motion
all the three have the same inter molecular forces
Paliwanag
The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion.