| A | B |
|---|
| energy | the ability to do work |
| Doppler Effect | change in sound frequency caused by motion of the sound source, motion of the listener, or both |
| frequency | cycles per second. How many waves can pass a given point per second, measured in Hertz (Hz) |
| crest | highest point of a wave |
| loudness | the human perception of sound intensity |
| solids, liquids, or gasses | in order from fast to slow, name the mediums through which waves travel through |
| wavelength | the length of a wave |
| trough | lowest point of a wave |
| amplitude | maximum distance a wave varies from its crest to its resting position |
| transverse and longitudinal | two types of mechanical waves |
| compression | part of a longitudinal wave where the particles of the medium are close together |
| rarefactions | the part of a longitudinal wave where the particles of the medium are farther apart |
| vibration | a repeated back-and-forth or up-and-down motion |
| period | seconds per cycle. How long it takes for a wave to complete one cyle |
| wave speed | speed at which a wave travels through a medium (frequency x wavelength) |
| osicllate | to and fro movement like a swinging pendulum |
| Seismic Wave | a vibration that travels through Earth carrying the energy released during an earthquake |
| solids, liquids, and gasses | What are 3 types of medium a mechanical wave can travel through? |
| medium | the material through which a wave travels ( solids, liquids, or gasses) |
| wave | disturbance that travels from one place to another transporting energy, but not necessarily matter, along with it |
| longitudinal | wave that moves parallel to the wave energy; contains compressions and rarefactions |
| transverse | wave that moves perpendicular to the wave energy |
| Electromagenetic | wave that does not require a medium |
| Mechanical | waves that require a medium |
