Fulcrum
Academy

Track V · 45 min

Oscillation & waves

Simple harmonic motion, resonance — the quiet reason bridges and shafts fail — and traveling waves.

0/3 lessons0%
  1. 1Simple harmonic motionBenchThe restoring force is linear. Nature then draws a sine wave, and a lot of machines depend on it.
  2. 2Waves on a lineA disturbance that travels. Frequency is a source property; speed is a medium property.
  3. 3Superposition and standing wavesLinear media add. Boundaries pick the wavelengths that fit. That is a guitar, an organ, and an AC line.

Benches

Pendulum bench

Length and g set the clock. Large angles break the small-angle story.

T = 2π √(L/g)

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