Wavelength
The wavelength() of a wave is the distance from one crest to the next.



Velocity
Velocity is denoted by the letter c. The green arrow in the diagram below represents the velocity (a vector) of the wave. It is given by the formula.
c=/T
where T=time =wavelegth

The faster the wave the smaller the wavelength.

The slower the wave the longer the wavelength.

Time Period
The time period of a wave is the time it takes one wavelength to pass a point ie how long does it take for the green dot to pass the yellow line.
1/frequency=1/

Amplitude
The amplitude of the wave is the distance from the xaxis to the crest.

Frequency
The frequency() is the number of crests that cross a point in a given amount of time. ie how many crests pass the yellow line in time T.

There are two types of frequencies
 period per second
 radians per second
When we use radians per second and given , c and we get the formula.
T=2/
where T=time
This changes the velocity formula to
c=/2
