Physics
Grade-9
Easy

Question

Which of the following statements is not correct for a particle executing simple harmonic motion?

  1. The restoring force of the body is always directed towards a fixed point.
  2. The total energy of the particle always remains the same.
  3. The restoring force is maximum at the extreme positions.
  4. None of these options

hintHint:

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 restoring force of the body is always directed towards a fixed point.


    • the restoring force is a force that acts to bring a body to its equilibrium position. The restoring force is a function only of position of the mass or particle, and it is always directed back toward the equilibrium position of the system.
    • the total energy of the particle in SHM is constant and it is independent of the instantaneous displacement.
    • We know that during SHM, the restoring force is proportional to the displacement from equilibrium position. Hence restoring force is maximum when the displacement is maximum.
    • So None of These is correct

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