| A | B |
|---|
| crest | highest point on a transverse wave |
| frequency | cycles per length of time |
| period | length of time per cycle |
| trough | lowest point on a wave |
| wavelength | the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings (the distance over which the wave's shape repeats) |
| amplitude | the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position |
| medium | a mechnical wave must have this to pass through |
| velocity of a wave | wavelength times frequency |
| hertz | one over a second |
| purpose of wave motion | to transfer energy from place to place |
| longitudinal wave | type of wave that the particles of the medium are vibrating to and fro in the same direction of energy transport |
| transverse wave | type of wave were the particles of a medium are vibrating at right angles to the direction of energy transport |
| pulse | A single disturbance that moves from point to point through a medium |
| compression | part of a longitudinal wave where the molecules are closer together then at equilibrium |
| rarefaction | part of a longitudinal wave were the molecules are farther apart then at equilibrium |
| node | a point in a standing wave that does not deviate from equilibrium |
| anti-node | a point along a standing wave where there is maximum amplitude |
| standing wave | also known as a stationary wave, is a wave that remains in a constant position |
| harmonic motion | any motion that is repetitive |
| cycle | the repeated portion of the motion |
| hertz | unit for frequency (cycles per second) |
| boundary | a place that limits a waves motion |
| harmonic | a wave that is a multiple of another wave |
| fundamental | the first harmonic of a standing wave that is equal to half its wavelength |
| driven end | the part that is moved to give energy |
