| A | B |
|---|
| Sound | disturbance that travels through medium as a longitudinal wave |
| noise | mixture of sound waves that are not pleasing together |
| pitch | how high or low a sound seems to a person |
| sonar | system of detecting reflected sound waves |
| loudness | determined by the amplitude of the wave |
| fundamental tone | has one frequency |
| echolocation | used by dolphins to hunt at night |
| Middle ear | hammer, anvil, and stirrup bones |
| music | set of tones combined ina way that is pleasing to the ear |
| Doppler effect | change in frequency of a wave produced by a moving source |
| ear canal | part of ear sound waves enter through |
| hairlike structures in cochlea | send message to your brain that you've heard a sound |
| density | amount of mass in a given amount of space |
| wavelength | distance between a compression or rarefraction and the same spot on the next wave |
