Question

we can say that to and fro motion of an object is called vibration.

Answer 1

yes, the back and forth motion of an object can be called vibration. it's also called oscillatory motion.

hope this helps frnd.....

Answer 2

​A repeated back and forth motion is called vibration.

When an object moves back and forth continuously, we say that it is making vibration.

When a swing moves back and forth repeatedly, we say that swing is making vibration or oscillation.

A simple pendulum can be made by tying about the one metre long thread from a small metal ball and suspending it from a height. The small metal ball of pendulum is called bob .When the pendulum is at rest then its bob is in normal position or central position.