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Amplitude and SHM

  1. Jul 28, 2011 #1
    The frequency and the period of Simple harmonic motion don't depend on the amplitude. Meaning that changing the amplitude of a simple harmonic oscillator doesn't affect its frequency..

    amplitude is the max displacement. Doesn't it make sense that if the max displacement is larger, then time will increase and frequency will decrease??
  2. jcsd
  3. Jul 28, 2011 #2

    Doc Al

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    Staff: Mentor

    If the speed remained fixed, then that reasoning would work. But the speed doesn't remain fixed. With a greater amplitude, the object ends up moving faster along the path. Interestingly, that increased speed is exactly enough to keep the period and frequency constant.
  4. Jul 28, 2011 #3
    cool! thanks! do we know why that happens? or is that a philosophical question?
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