Question

Give examples of vibratory motion?

Answer 1

Hint: You could give a brief definition of vibratory motion so as to be certain of how common actually the vibratory motion is. Then you could explain it for the case of sound wave propagation and also give ways to detect them. You could also give other examples for vibratory motions as per the question.

Complete step by step answer:
In the question, we are asked to list down examples of vibratory motion. You may be familiar with the fact that vibration of objects produces sound and it is through vibratory motion that this sound gets propagated. Vibration simply is the back and forth or to and fro motion of an object. There are cases where a naked human eye could detect vibrations. Some vibrations with smaller amplitude can be experienced though we cannot see them.
Examples for vibrations are:
(1) Oscillation of a simple pendulum.
(2) Our vocal cord movement
(3) The movement of a swing.
(4) Movement of sound waves causes vibrations.
(5) Tuning fork when hit on or by a hard object produces vibrations.
(6) In string instruments like guitar, sitar, etc, movement of string while playing them is vibration.
(7) Our mobile phones do vibrate.

Note: You may find that vibratory motion is equivalent to oscillatory motion. The difference lies in the fact that vibratory motion has greater frequency. Periodic motion that occurs over and over again at regular intervals is different as oscillations and vibrations are required to occur about a mean point.