Anything that swings or bounces or vibrates in a regular motion is said to oscillate. For example a pendulum, a child on a swing, or a spring bouncing up and down.

  • simple harmonic motion
  • quantitative treatment using a = –ω²x and its solution x = A cos ωt

The link between an oscillating system undergoing simple harmonic motion and a sinusoidal wave is quite an easy one for students to understand, but the mathematics can be quite complicated for them.

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