Question

(viii) Which is an example of a periodic motion?
(a) Oscillation of a pendulum
(b) Motion of a bus on road
(c) A spinning top
(d) A stone dropped from a certain height

Answer 1

(a) answer oscillation of a pendulum

Answer 2

The correct answer for the given question is the Oscillation of a pendulum (option a).

• Periodic motion is defined as a motion in which an object's motion is repeated at a set interval or on a regular basis.
• When an object is left after applying force to it once, periodic motion occurs.
• Because the pendulum oscillates at its axis in left and right or forward and backward directions, oscillation of the pendulum is a periodic motion.
• This motion is repeated for a set amount of time. Because the pendulum swings in the same direction or position over and over.
• The motions of a bus, a table top, and a stone dropped from a height are not periodic since they do not repeat at regular intervals.
• As a result, pendulum oscillation is the correct answer.