The Physics Classroom is an "online, free to use physics website developed for beginning physics students and their teachers." The entire project was created by a high school physics educator from Glenview, Illinois; this section of the website, the Multimedia Studios, features a number of helpful resources, including dozens of simple, informative multimedia presentations. For instance, under the category 1-Dimensional Kinetics, readers will find explanations of Average vs. Instantaneous Speed or Acceleration vs. Constant Velocity, each with their own explanatory graphic. Other categories include Newton's Laws, Vectors and Projectiles, Momentum and Collisions, Work and Energy, Circular, Satellite, and Rotational Motion.