Pulse Wave – A single disturbance that moves from one point to another.

 

Periodic Wave – series or repeating of many disturbance at regular, even intervals.

 

Transverse Waves – the displacement of the highest point (crest), or the lowest point (trough) from the mid point of the wave is perpendicular (90° angle) to the direction the wave is travelling to.

 

Longitudinal Wave – The disturbance is in the same direction of the wave it will travel to.