Randolph 4th Sound
| Description: | 4th Grade Harcourt Unit E chapter 3 Sound |
| Category: | Physical Science |
| Created by: | crandolph on 2007-03-19 |
| Definitions | Vocabulary Word |
| moving areas of high and low pressure | sound waves |
| a series of vibrations you can hear | sound |
| a shock wave produced by an object traveling faster than the speed of sound | sonic boom |
| a measure of the sound energy reaching your ear | loudness |
| a sound reflection | echo |
| a measure of how high or low a sound is | pitch |
| the speed at which sound waves travel | speed of sound |
| an area where air is pushed together | compression |
| shown by height on a wave diagram | amplitude |
| distance from one sound wave compression to the next | wavelength |
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