Question

distinguish between
periodic change non periodic change​

Answer 1

Answer:

Periodic and non-periodic changes Changes that repeat at regular intervals are called periodic changes. Examples: The occurrence of day and night and the waxing and waning of the moon. Certain changes that do not repeat themselves at regular intervals of time, and such changes are called non-periodic changes.

Answer 2

Answer:

Periodic change is that when any event which occurs at regular intervals or any motion which repeats itself after regular interval of time.

This is a type of motion where the object repeats its motion after a fixed interval of time. Examples pendulum of a clock, motion of child on a swing etc.