Chapter 15
| Description: | definitions |
| Category: | Physics |
| Created by: | pickensbra10 on 2009-10-22 |
| Question | Answer |
| frequency | sounds tells you how fast pressure oscillates |
| superposition principle | sound creates by superpstion of many frenquencies |
| decibels | loudness of a sound |
| speaker | device spicificly to reproduce sounds accuratly |
| acoustics | sound and technology of sound |
| microphone | transforms sound aves into electrical signal |
| stereo | recorded sound you hear |
| longitudinal | air thats compressed in direction of travel |
| wavelength | sound in air that compairable to size of everyday objects |
| subsonic | moving slower than sound |
| shock wave | forms when wave fronts pile up |
| supersonic | moving faster than sound |
| reverbration | multib |
| fouries theorm | any wave can be represented as a sum of single frequency waves |
| frenquency spectrum | graph that shows amplitude of each component frequency in complex wave. |
| songram | special graph |
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