The PhET (Physics Education Technology) project involves interactive simulations of physical phenomena aimed at improving the learning and appreciation of physics for a wide range of students, teachers, and the general public.
The simulations are animated, interactive, and game-like environments in which students learn through exploration. In these simulations, we emphasize the connections between real life phenomena and the underlying science and seek to make the visual and conceptual models that expert physicists use accessible to students.
PhET simulations animate what is invisible to the eye, such as atoms, electrons, photons and electric fields. User interaction is encouraged by engaging graphics and intuitive controls that include click-and-drag manipulation, sliders and radio buttons.
By immediately animating the response to any user interaction, the simulations are particularly good at linking multiple representations and at establishing cause-and-effect.