What Is Sound Wave?

- Sep 17, 2018-

Sound wave is a kind of mechanical wave propagating in an elastic medium, which originates from the vibration of the sounding body. The sound wave range is 20Hz-20KHz, the sound wave with frequency higher than 20KHz is ultrasonic wave, the sound wave with frequency lower than 20Hz is the secondary sound wave, the ultrasonic wave and the infrasound wave generally cannot cause hearing, only the sound wave with frequency between them can be heard, we can listen The sound waves that arrive are called sound waves or audible sounds.



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