Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations.

PhET provides fun, free, interactive, research-based science and mathematics simulations. We extensively test and evaluate each simulation to ensure educational effectiveness.

PhET Interactive Simulations is a nonprofit project based at the University of Colorado Boulder (CU). Our team of designers, researchers, educators, and developers is dedicated to …

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.

Simulations All Sims Physics Math & Statistics Chemistry Earth & Space Biology Translated Sims Customizable Sims Studio About Studio Customizable Sims Start a Free Trial Purchase a …

Simulations All Sims Physics Math & Statistics Chemistry Earth & Space Biology Translated Sims Customizable Sims Studio About Studio Customizable Sims Start a Free Trial Purchase a …

‪Gravity and Orbits‬

By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims …

Simulations All Sims Physics Math & Statistics Chemistry Earth & Space Biology Translated Sims Customizable Sims Studio About Studio Customizable Sims Start a Free Trial Purchase a …

Learn about position, velocity, and acceleration graphs. Move the little man back and forth with the mouse and plot his motion. Set the position, velocity, or acceleration and let the simulation …