Question

The to and fro motion of a body from its rest position is called _________ motion.

Answer 1

1. In this motion, the object comes back to its rest position, then moves to the other end, and then comes back to its rest position again.
2. Oscillatory motion is repetitive, at regular intervals of the time.
3. For example, the motion of a swing, and the motion of the pendulum of a wall clock.

Hence, the to and fro motion of a body from its rest position is called oscillatory motion.