Physics
Grade-9
Easy
Question
Select the one that is an example of periodic motion:
- A car taking a turn on a curved road.
- March past of soldiers.
- A bird flying in the air.
- A lift moving down.
Hint:
periodic motion, in physics, motion repeated in equal intervals of time.
The correct answer is: March past of soldiers.
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
Bird's motion is periodic while wing flapping is oscillatory.
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