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Define simple harmonic motion ? Give two...

Define simple harmonic motion ? Give two examples.

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Simple Harmonic Motion: A body is said to be in S.H.M if its acceleration is directly proportional to its displacement, acts opposite in direction towards a fixed point.
Exmaples :
1) Projection of uniform circular motion on a diameter.
2) Oscillations of simple pendulum with small amplitude.
3) Oscillation of a loaded spring.
4) Vibrations of a liquid column in U-tube.
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Knowledge Check

  • In a simple harmonic motion

    A
    the potential energy is always equal to the kinetic energy
    B
    the potential energy is never equal to the kinetic energy
    C
    the average potential energy in any time interval is equal to the average kinetic in that time interval
    D
    the average potential energy in the time period is equal to the average kinetic energy in this period
  • To show that a simple pendulum is in a simple harmonic motion it is necessary to assume that

    A
    the length of the pendulum is small
    B
    The mass of the pendulum is small
    C
    the amplitude of oscillation is small
    D
    the acceleration due to gravity is small
  • To show that a simple pendulum is in a simple harmonic motion it is necessary to assume that

    A
    the length of the pendulum is small
    B
    The mass of the pendulum is small
    C
    the amplitude of oscillation is small
    D
    the acceleration due to gravity is small
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