WAVES

Wave: a periodic disturbance in a solid,liquid, or gas as energy is transmitted through a medium. There are 5 different waves waves,transverse wave,longitudinal

wave,electromagnetic wave,surface wave. A medium is a physical environment when phenomena occur and some waves need the medium to make them move. And some waves don't need a medium to transfer energy. A transverse waves move perpendicularly, longitudinal waves move vibrate parallel. When particles vibrates it moves back and forth that passes energy to a particle next to it. There are also sound waves and sound waves travel by compression and rarefaction of the air partials. The wave energy can be carried away from the sources.