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Terpsichore
facts on sound
| Question | Answer |
|---|---|
| Define sound. | A disturbance that travels through a medium as a longitudinal wave. |
| Sound waves reflect __, diffract __, and interfere __. | Sound waves reflect off objects, diffract through narrow openings and around barriers, and interfere with each other. |
| What does the speed of depend on? | the elasticity, density, and temperature of the medium the sound travels through |
| The loudness of a sound depends on 2 factors: | the amount of energy it takes to make the sound and the distance from the source of the sound |
| What does the pitch of the sound you hear depend on? | the frequency of the sound wave |
| What happens when a sound source moves? | The frequency of the waves changes because the motion of the source adds to the motion of the waves. |
| The sound quality of musical instruments results from what? | blending a fundamental tone with its overtones |
| There are 3 basic groups of musical instruments: | stringed instruments,wind instruments, and percussion instruments |
| Acoustics is used in the design of concert halls to control _ and _. | Acoustics is used in the design of concert halls to control reverberation and interference. |
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Daedalus
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