Chapter 3 States of Matter. Section 1 Matter and Energy. Kinetic Theory of Matter. Matter is made of atoms and molecules. Atoms and molecules act like tiny particles. They are always in motion. The higher the temperature of the substance, the faster the particles move.
Matter and Energy
Energy before change =energy after change
P1V1 = P2V2
1 is initial volume and pressure and 2 is final
volume and pressure