Physics
Grade-9
Easy
Question
Human heart breathing is an example of:
- Uniform motion
- Circular motion
- Periodic motion
- Non-uniform motion
Hint:
periodic motion, in physics, motion repeated in equal intervals of time.
The correct answer is: Periodic motion
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.
Hence, The heartbeat of a normal person is an example of periodic motion.
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