Question

Differentiate between periodic and non-periodic motions by giving an example of each.

Answer 1

Periodic motion : A motion which gets repeated after regular intervals of time is called periodic motion.

Examples: The earth moving around the sun takes 365 days to complete one revolution and this motion gets repeated after every 365 days.

Non-periodic motion: The motion which does not repeat itself after a regular interval of time is called non-periodic motion.

Examples: A footballer running on a field, application of brakes in a moving vehicle, a ball rolling down the ground gradually slows down and finally stops, the motion of tides in the sea, etc.