Question

Q.1 Anything that can be heard is.....................?
Q.2 SI unit of frequency is...........?
Q.3 Vibrations travel in a..................
motion?


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Answer 1

Answer:

1. Audible: able to be heard. Audition: the power of hearing or listening.
2. hertz (Hz)
3. The SI derived unit of frequency is the hertz (Hz), named after the German physicist Heinrich Hertz. One hertz means that an event repeats once per second.
4. Vibrations in objects and substances are oscillating motions that occur repeatedly over a fixed position. Vibrations are the origins of waves. When vibrations disturb a medium, the disturbance travels through the medium, from one location to another, in the form of a wave.