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Sound Study Guide
| Term | Definition |
|---|---|
| water | Sound travels better in ___ than in air. |
| vacuum | Sound cannot travel in a ___ (outer space). |
| True | True or false: Sound travels faster along a solid instead of a liquid because the matter is denser. |
| echolocation | Sounds animals use to help them locate objects, such as bats and dolphins. These sounds cannot be heard by humans because of the high frequencies animals use. |
| crest | highest point of a sound wave |
| trough | lowest point of a sound wave |
| the distance from crest to crest | How are wavelengths measured? |
| vibrations | back and forth movements of matter |
| frequency | the number of a times a sound source vibrates in one second |
| lower | the lower the frequency, the ___ the pitch. |
| softer | the further away you are from the sound source, the ___ the sound becomes. |
| shortest | On stringed instruments, the highest frequencies are made by the ___ strings. |
| longest | On stringed instruments, the lowest frequencies are made by the ___ strings. |
| speed of sound | The ____ through a solid, liquid, or gas depends on how close the molecules are to each other in the material. |
Created by:
Vigilrs
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