All terms in this list:

wave: A periodic disturbance in solid liquid or gas.

medium: A physical environment in which phenomena occur

mechanical wave: A wave that moves a long distance

electromagnetic wave: A wave that moves a long distance

transverse wave: A wave in which particles move in a perpendicular direction

crest: The top of a wave

trough: Bottom of a wave

compression: when the particles in a wave are close together

rarefraction: When the particles in a wave are spread apart

longitudinal wave: With the medium in the same or opposite direction

surface wave: A wave that travels through the earth