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Sound Study Guide
Learn these key terms to help you prepare for the test.
| Term | Definition |
|---|---|
| Echo | A reflected sound wave. |
| Elasticity | Ability of a material to bounce back once disturbed |
| Density | Unit of mass per volume |
| Loudness | the perception of energy of sound |
| intensity | the amount of energy a sound wave carries per second. |
| Decibel | unit that measures loudness of a sound |
| Pitch | how high or low a sound seems |
| Ultrasound | Sound waves with frequencies above the normal human range of hearing |
| Infrasound | Sounds with frequencies below the human range of hearing. |
| Doppler Effect | The change in frequency of a wave as its source moves in relation to an observer |
| Music | a set of notes that combine in patterns that are pleasing. |
| Fundamental Tone | The lowest natural frequency of an object |
| Overtone | The object’s higher natural frequencies |
| Acoustics | study of how sounds interact with each other and the environment. |
| ear canal | narrow area that leads to the ear drum |
| ear drum | a small, tightly stretched, drumlike membrane |
| cochlea | a fluid-filled cavity shaped like a snail shell |
| echolocation | the use of reflected sound waves to determine distances or to locate objects. |
| Sonar | A system that uses reflected sound waves to detect and locate objects underwater |
Created by:
MrCscience
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