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Lesson3
sound waves
| Question | Answer |
|---|---|
| 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 | the number of deaths per 1000 individuals in a certain period of time |
| 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 |