Question

define periodic motion and give two​

Answer 1

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Periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.

Answer 2

Answer:

periodic is the motion in which an object travels in a straight path for a constant period of time

eg earth