Question

Why is the motion of a pendulum said to be a periodic motion?

Answer 1

1. Motion of an object that repeats itself after regular time intervals is called as a periodic motion.
2. You will observe that in a pendulum experiment, the time taken to complete one oscillation is always the same every time in the repetition.
3. Hence, the motion of a pendulum repeats itself after regular time intervals. Hence, motion of a pendulum is an example of periodic motion.