Water Waves in an Electric Sink [PhET]

A unit on mechanical waves and sound can include many delightful demonstrations and labs. Computer simulations can also be a part of that healthy diet.

Here's one I developed to give students immediate visual feedback and control of representations of mechanical waves. And a sense of why there's a "volume" control on devices that produce sound. Isn't volume a geometry idea?

Water Waves in an Electric Sink [PhET] at Teachers Pay Teachers

It's a print-friendly Google Docs file and includes an answer key, as is customary at The Lessons of Phyz on Teachers Pay Teachers.