Which course are you taking?
You can change this later with the Level button at the top.
Before the bench unlocks
Speed
⏸ Paused. Press Space or Play.
How to use the bench (mouse, touch, or keyboard)
- Dials: every control is in the side panel: drag a slider, use ‹ › (fine) and ‹‹ ›› (coarse), or type an exact value.
- λ ruler: turn it on in Measuring tools, then drag its yellow jaws onto two neighbouring crests (they snap). Pause first.
- Microphone (sound): drag it, or use the Microphone position slider. Ripple tank: tap or drag to place the probe.
- Keyboard: Space play / pause · → step a tenth of a period (Shift + → a whole period) · P send a pulse · R reset · Z / X zoom · H help.