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8th Grade Unit 3a
Sound
Term | Definition |
---|---|
Acoustics | The science of sound: Study of the interaction between sound waves and objects |
Amplification | Producing sounds that have more intensity than where they were originally produced |
Compression | Moving molecules closer together as in a gas being put into a canister. |
Compression wave (longitudinal wave) | A wave produced where molecules are pushed closer together and then rebound to their normal position |
Crest | The highest point of a transverse wave |
Density | The ratio of mass versus volume: D= m/V |
Doppler Effect | When sound waves of an object moving relative to the observer take on a different frequency than if the object were stationary. |
Frequency | The number of waves that pass a given point in a given amount of time. |
Inner ear | Inner most part of the ear that contains the cochlea and nerve endings |
Intensity | The loudness of sound |