Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

This online virtual oscilloscope allows you to visualise live sound input and get to grips with how to adjust the display. If you find this useful, our online spectrum analyser may also be of interest to you.

This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears.

After many vibrations, a series of compressions and rarefactions moves out from the speaker as a sound wave. The red graph shows the gauge pressure of the air versus the distance from the …

From the time graph, the period and frequency can be obtained. From both together, the wave speed can be determined. Any of the wave parameters below can be changed. When you have finished …

Learn about how waves are measured according to amplitude, wavelength and frequency. Add subjects, save guides and continue where you left off with your BBC account. You need to know about two...

Explore the key components of a sound wave diagram, including amplitude, frequency, wavelength, and phase, and understand how each part contributes to the wave's behavior.

When you record sound using a microphone, vibrations of the air turn into electrical signals. The resulting electrical signal can be recorded, graphed and analyzed.

At the first green line, both red waves have high pressure and reinforce each other to give an extra high pressure in the blue wave. At the second green line, the two red waves have opposite pressures and …

This video shows waves on the surface of a wine glass, being driven by sound waves from a speaker. As the frequency of the sound wave approaches the resonant frequency of the wine glass, the …