2.
the maximum distance moved by a vibrating wave
4.
the ability to make things move or change
5.
the number of waves that passed in a certain time
6.
a natural agent that allows things to be visible
7.
any object that lets off visible waves
8.
a substance that takes up space
9.
to be sent back off of a surface
11.
transferring energy from one place to the next
12.
distance between one peak of a wave to the next
