| A | B |
|---|
| crest | high point of a wave |
| trough | low point of a wave |
| frequency | number of waves passing a point in a given time |
| amplitude | height of a wave that indicates the amount of energy carried by the wave |
| transverse wave | wave that moves matter up and down or side to side as the wave passes through |
| electromagnetic wave | energy that travels through space at a speed of 300,000,000 meters per second |
| electromagnetic spectrum | arrangement of electromagnetic waves by wavelengths or frequencies |
| reflection | bouncing of a wave off a surface |
| concave mirror | reflecting surface that curves like the inside of a spoon |
| convex mirror | reflecting surface that curves like the outside of a spoon |
| refraction | the bending of a wave as it moves from one material to another |
| lens | curved piece of glass, plastic, or other clear material |
| visible spectrum | visible part of the electromagnetic spectrum that includes the colors in white light |
| compressional wave | energy that moves matter back and forth in the same direction that the wave is moving |
| pitch | how high or how low a sound seems |
| intensity | amount of energy carried by waves |
| decibel | unit used to indicate intensity of sound |
