PH 212

Oscillations

 

  • Simple harmonic motion
  • Oscillator vs. wave
  • Simple harmonic oscillators
    • Mass on a spring
    • Pendulum
      • Physical pendulum
  • Energy
  • Damping
  • Driven oscillations
  • Resonance

Simple harmonic motion

An undamped mass oscillating on a spring produces a sine wave. Note that a maximum or minimum value of position corresponds with a zero in velocity. Acceleration is not constant, but varies out of phase with position vs. time.

A rotating object can also be considered a simple harmonic oscillator. Its projection produces a sine wave.

The phase is the argument of the sine function. The phase constant provides initial conditions for the oscillation, when t = 0.

Simple harmonic oscillator: mass on a spring

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