| Definitions |
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| Vocabulary Word |
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| 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 |