PhET Blog

No sim design is ever final! We are always looking for ways to
improve them. For example, we recently updated the molecule images
in the Reactants, Products and Leftovers sim to match the images that are used in other PhET chemistry sims. We hope this change will allow more continuity in your
curriculum.

We’re excited to publish our latest new simulation, Normal Modes:

Play with a 1D or 2D system of coupled mass-spring oscillators. Vary the number of masses, set the initial conditions, and watch the system evolve. See the spectrum of normal modes for arbitrary motion. See longitudinal or transverse modes in the 1D system.

Learn about Beer’s Law with this new simulation:

“The thicker the glass, the darker the brew, the less the light that passes through.” Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer!

This inquiry-based lab, written by PhET’s Noah Podolefsky, is great to teach Middle Schoolers about kinetic energy, potential energy and conservation of energy–before they hit the skate park for real over the summer!

We’re excited to announce that we have been chosen as the 2nd Place Winner in the 2012 SIGOL Online Learning Awards. This award recognizes innovative educators worldwide for their leadership and creativity in providing e-learning opportunities for elementary through university students. As part of the award, come see us at ISTE 2012 June 24-27th in San Diego, CA.