For Educators · Doppler Effect
Doppler Effect for a carousel
Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a carousel live below — adjust the inputs and watch it respond, right in your browser.
Doppler EffectLive
moving source · wavefront compression
Controls
A moving source squeezes its wavefronts ahead and stretches them behind — higher pitch approaching, lower pitch receding. Push past the wave speed for a sonic boom.
Presets
Data Inspector
Mach number0.68
Regimesubsonic
Source freq440 Hz
Approaching f'1383 Hz
Receding f'262 Hz
Governing equation
Reading this result: Approaching, the 440 Hz source is heard higher — about 1383 Hz; receding, it drops to about 262 Hz. The faster the source (Mach 0.68), the wider that split.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for educators?
- Yes — this version of "Doppler Effect for a carousel" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.