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Sound.
MacMillan F12.2
Question | Answer |
---|---|
The part of the sound wave with many particles pushed together | compression |
The part of the sound wave with few particles | rarefaction |
A series of rarefactions and compressions traveling through a substance | sound wave |
The substance through which the wave travels | medium |
A region that contains few or no particles | vacuum |
The transfer of energy when a wave disappears into a surface | absorption |
When sound waves hit a flat, firm surface and much of the energy bounces back | echo |
The number of times an object vibrates per second | frequency |
How high or low a sound is | pitch |
A change in frequency due to moving away or toward a wave | Doppler effect |
The height of a sound wave | ampitude |
Finding food or other objects using sounds and the returning echoes | echolocation |
Sound Navigation and Ranging; a system scientists developed using sound waves to find things underwater | sonar |