Inertia plus a restoring force produces oscillations. The mechanical equation for Simple Harmonic Motion. Initial conditions. Cyclic and angular frequency. Mechanical and kinetic energies. The simple pendulum. A nonlinear pendulum. Damped oscillations. Forced oscillations. Resonance in one, two and three dimensions.
Simple Harmonic Motion
Simple Harmonic Motion as a projection of circular motion. Displacement, velocity and acceleration. Chladni patterns and sinusoidal vibration.
The Mexican Wave
The mexican wave (or stadium wave) is an example of a travelling wave.
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