| A | B |
| A disturbance in matter that carries energy | mechanical wave |
| wave travels at 90º(perpendicular) to the medium | transverse |
| wave travels in direction of medium | longitudinal wave |
| highest point of a wave | crest |
| lowest point of a wave | trough |
| distance from crest to rest | amplitude |
| distance from crest to crest | wavelength |
| waves per second and pitch | frequency |
| the energy and intensity of a wave | amplitude |
| is used to measure frequency(cycles/sec) | hertz |
| where particles are far apart | rarefaction |
| The matter through which a wave moves | medium |
| The area in a longitudinal wave where particles are close together | compression |
| Another term for a longitudinal wave | compressional wave |
| a wave that exists between 2 mediums | surface wave |
| motion that repeats at regular intervals | periodic motion |
| wave bouncing off an impassable object | reflection |
| bending of wave in a new medium | refraction |
| the bending of waves through opennings or around obsacles | diffraction |
| interference where crests line up | constructive interference |
| interference where crests line up with troughs | destructive interference |
| waves overlapping | interference |
| wave where crests and troughs interfere causing nodes and antinodes | standing wave |
| area of a standing wave where medium is at rest | node |
| area of a standing wave where medium isn't at rest | antinode |