# Potential and Kinetic Energy

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 Description, diagrams and equations for gravitational energy. Includes example and energy of an orbiting satellite. Spark Notes Moments of inertia for various bodies http://en.wikipedia.org/wiki/List_of_moments_of_inertia Hundreds of free games illustrating basic principles of physics. PhysicsGames.net In this video, Dr. Radi Al-Jishi provides an introduction to the basic math used in physics. Educator.com This site lets users see the relationships between kinetic energy, potential energy, friction, and gravity as they design a roller coaster. Roller Coaster Simulation This website provides not only an explanation of how the ballistic pendulum can be used to measure the speed of a bullet but also a calculator to check your work. It can be used to explain a similar assembly involving a spring instead of a pendulum as well. You simply substitute the equation for the potential energy of a spring for (M+m)gd -- the potential energy of the pendulum. Hyperphysics Physics StudyStack Need to study for Physics? Here are some questions to help you out!!! StudyStack A list of equations and constants for AP Physics B and C exams, organized by subject. PhysicsLAB This describes (with equations and diagrams) the work-energy principle, and how it applies to rotation, including the important conditions for rolling without slipping. HyperPhysics
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