Doppler Effect
This interactive simulator explores Doppler Effect in Waves & Sound. Moving source with pitch change via Web Audio. Wavefront compression visible. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Waves & Sound.
Key terms
- doppler
- effect
- doppler effect
- waves
- sound
How it works
Stationary observer and a source in sinusoidal motion: the line-of-sight velocity component toward the observer shifts the perceived frequency. Concentric wavefronts are emitted from past source positions; spacing reflects wavelength changes. Optional audio follows f ≈ f₀ c/(c − v∥).
Key equations
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