frequency
the number of occurrences of a repeating event per unit of time.
period
the time it takes to complete one cycle.
Wavelength
the distance between successive crests of a wave
Crest
the point on a wave with the maximum value of upward displacement within a cycle.
trough
A trough is the opposite of a crest, so the minimum or lowest point in a cycle.
Medium
the medium through which the wave travels is the ocean water.
amplitude
the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
longitudinal wave
a wave vibrating in the direction of propagation.
electromagnetic spectrum
the range of wavelengths or frequencies over which electromagnetic radiation extends.
transverse wave
a wave vibrating at right angles to the direction of its propagation.
Compression
the action of compressing or being compressed.
rarefaction
diminution in the density of something
Reflection
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.
Refraction
the change in direction of a wave passing from one medium to another caused by its change in speed.
diffraction
various phenomena that occur when a wave encounters an obstacle or a slit.
