Question

State any one example for each:
A. Periodic change
B. Fast change
​

Answer 1

Answer:

Periodic changes are changes which occur periodically or at regular intervals Example: Change of seasons. Day and night, changing phases of the moon, beating of heart, clock striking an hour are all examples of periodic motion whereas waterbecoming ice, burning of matchstick etc are non periodic changes.

Example: Rusting of iron. The changes that occur within a short time frame are considered as fast changes. Example: Crackers burst

Answer 2

Answer:

A) periodic change is day and night.

B) burning of paper.