1.
the height of a wave from its resting point
2.
measures one wave, peak to peak
5.
needs a medium to travel through
6.
when light changes direction when it changes material
7.
the term for waves per second
8.
the higher number of hertz, the higher...
9.
the term for bouncing off and going in a new direction
10.
true or false: light waves need a medium to travel
11.
true of false: sound waves need a medium to travel
12.
this determines how many waves pass a point per second
