Physics
Grade-9
Easy

Question

Human heart breathing is an example of:

  1. Uniform motion
  2. Circular motion
  3. Periodic motion
  4. Non-uniform motion

hintHint:

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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