All terms in this list:

Wave: A wave is a periodic disturbance in a solid, liquid, or gas. As a energy is transmitted through a medium.

medium: A wave is a substance through witch a wave can travel.

Mechanical Waves: A mechanical wave is a wave that needs a medium

Electromagnetic Wave: Waves that do not require a medium but can go through matter are called electromagnetic wave.

Transverse Waves: A wave in which the particles of the medium move perpendicularly to the direction of the wave is traveling.

Reflection: This is where a where bounces back after hitting a barrier.

Refraction: This is the beginning of a wave as the wave passes a medium to another angle.

diffraction: This is the bending of waves around a barrier or through an opening.

interference: The result of two or more waves overlapping.

Crest: The crest is the top and the highest point of the wave.

Trough: The trough is the lowest point of the wave

compression: This is where particles are close together

rarefaction: This is where wave particles are far apart

longitudinal wave: this is a wave in which the particles move side to side.

surface wave: This is a wave in which the particles move circular.

amplitude: The amplitude is the farthest distance the particles are from the rest position.

wave length: this is the difference between two crests or compressions next to each other is also a wavelength.

frequency: The number of waves in a given amount of time.