Correct Answer: periodic motion

Solution : The correct option is periodic motion .

A type of motion known as periodic motion occurs when an object moves repeatedly according to a set pattern. This motion is repeated at regular intervals, and each cycle is the same as the last. Three essential elements define periodic motion: cycle, period, and frequency.

• Cycle : After the motion is repeated, a whole cycle is completed.
• Period : The amount of time needed to finish a whole cycle is called the period.
• Frequency : Frequency is the number of cycles per unit of time.