Is oscillatory motion the second name of periodic motion?

Oscillatory motion is a motion in which, at a fixed interval of time or regularly, the movement to and fro is made about its mean, while periodic motion is the motion in which movement is repeated regularly, movement in periodic motion is not required. Alternatively, its mean position is bounded by oscillatory movement. Therefore every oscillatory movement is periodic but not every periodic movement is oscillatory.  For example, in 1 year, the earth completes one revolution around the sun, but about any mean position, it is not a to and fro motion. Hence its motion is not oscillatory on a periodic basis.

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Updated on: 10-Oct-2022

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