1.
the full range of electromagnetic radiation
2.
the material a wave travels through
3.
waves bending around an obstacle
4.
when two waves meet and alter each other's amplitudes
5.
the bending of a wave once a it passes from one medium to another
6.
the change in direction of a wave once it reaches a boundary
7.
the amount of waves that pass a certain point in a certain time
8.
how high or low a sound wave is, determined by its frequency
9.
the distance between one crest and another crest, or between one trough and another trough
10.
the lowest point of a wave
11.
the highest point of a wave
13.
a wave vibrating in the direction of propagation.
14.
a wave that travels along the surface of a medium, rather than through it.
15.
a disturbance that travels through a medium, like water, air, or a rope.
