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Nature of Sound
Term | Definition |
---|---|
sound | a disturbance that travels through a medium as a longitudinal wave |
echo | a reflected sound wave |
decibel | a unit used to compare the loudness of different sounds |
reverberation | the echos of a sound that are heard after the sound source stops producing sound waves |
density | how much matter, or mass, there is in a given amount of space, or volume |
Doppler effect | the change in frequency of a wave as its source moves in relation to an observer |
echolocation | the use of reflected sound waves to determine distances or to locate objects |
loudness | the perception of the energy of a sound |
sonar | a system that uses reflected sound waves to detect and locate objects under water |