Waves carry energy
Frequency and wavelength are connected through the speed of sound.
PHYSICS YOU CAN SEE · SOUND YOU CAN EXPLORE
Make invisible waves
come alive.
Create sound waves, unlock string resonance, hunt for quiet spots, measure echoes, chase moving sirens and shape musical beats. Every graph is driven by physics—not decorative animation.
CLASSES 8–12 · PHYSICS6 INTERACTIVE EXPERIMENTSSOUND OPTIONAL · FREE
FREQUENCY & WAVELENGTH
Sound Wave Builder
Choose a frequency to see an invisible wave.
CALCULATED PHYSICS
↔ Drag to orbit · Move the listener in Interference
THE EVIDENCE IS IN THE GRAPH
Watch the numbers move.
Tap a graph to inspect a point. On resonance, interference and Doppler charts, dragging changes the experiment.
WHY DOES IT WORK?
v = f λ
A REAL SCIENTIST RECORDS THEIR EVIDENCE
Your wave discovery notebook.
Try changing only one variable. What happened, and why? Save a short observation locally on this device—nothing is uploaded.
SIX EXPERIMENTS · ONE CONNECTED IDEA
Strings have natural frequencies
Length, tension and mass per metre determine allowed standing-wave harmonics.
Waves add or cancel
The path difference between coherent sources determines a bright or quiet interference spot.
Echoes reveal distance
An echo travels to a reflector and back, so time represents twice the distance.
Motion shifts pitch
Relative source and listener motion changes the observed sound frequency.
Superposition creates beats
Close frequencies produce slow beat envelopes; integer multiples form harmonics.