Physics
Grade-9
Easy
Question
The motion which is not simple harmonic is:
- Vertical oscillations of a spring
- The motion of a planet around the Sun
- Horizontal oscillations of a spring
- Motion of a simple pendulum
Hint:
Simple Harmonic Motion or SHM is defined as a motion in which the restoring force is directly proportional to the displacement of the body from its mean position
The correct answer is: The motion of a planet around the Sun
Simple Harmonic Motion or SHM is defined as a motion in which the restoring force is directly proportional to the displacement of the body from its mean position. The direction of this restoring force is always towards the mean position.
The motion of a planet around the sun is a periodic motion but not a simple harmonic motion.
All other given motions are the examples of simple harmonic motion.
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