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Lesson 3
| Term | Definition |
|---|---|
| Loudness | The perception of the energy of a sound. |
| intensity | the amount of energy per second carried through a unit area by a wave. |
| decibel | Unit used to compare the loudness of different sounds. |
| pitch | a description of how a sound is perceived as high or low. |
| Doppler effect | the change in frequency of a wave as its source moves in relation to an observer. |
| differentiate | to identify the difference between. |