1
A unit that compares that intensity of different sounds
2
Two or more waves combine to produce a wave with a smaller displacement
3
Cells in the retina that detect shape in dim light
5
The lowest point below the rest position
6
A wave of changing magnetic and electrical fields that can travel through empty space or matter
8
Cells in the retina that detect color in bright light
10
A change in sound frequency caused by motion of the sound source, motion of the listener, or both
11
Two or more waves overlap and combine together
12
A point where a crest or trough occurs midway between two nodes
13
Light passes through matter
16
The response of a standing wave to another wave of the same frequency
17
The frequency of a sound as you perceive it
18
Causes sunburn, kills bacteria
19
Longitudinal waves-compression's and rarefaction's that travel through a medium
20
Radiates heat, makes things warmer
22
A point on a standing wave that has no displacement from the rest position
23
Light is transmitted easily
24
The material though which a wave travels
25
The highest point of the wave above the rest position
29
Opens and closes to control the size of the pupil, gives the eye color
30
Useful to examine bones, security in airports