PhET
Out of the University of Colorado Boulder, PhET provides research-based interactive simulations of physical science concepts. Available through OLE, PhET's assets encourage your students to make connections between course content and real-world phenomena. Often animating what is invisible to the eye, many of PhET's graphic simulations involve measurement developing your students' quantitative skills.
Try it Out
Motion Interactivity: The Moving Man
Students explore the relationships among distance, speed, and acceleration and learn how to interpret and draw graphs of motion with this open-ended activity from PhET. Set the values for position, velocity, and acceleration and let the simulation move the man for you, or move the man yourself and watch as its motion is plotted.
Electricity and Magnetism Interactivity: Electric Field of Dreams
Use this interactivity to introduce a lesson on electric fields, or have students make predictions as a class to assess understanding. Add and remove charges and alter the direction and strength of a background electric field to see how the electric "field of dreams" is affected.