An extensive lectures on all aspects of a pendulum are given, accompanied by five interactive Java labs.
University of Basel, Switzerland
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Hundreds of free games illustrating basic principles of physics.
PhysicsGames.net
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This site lets users see the relationships between kinetic energy, potential energy, friction, and gravity as they design a roller coaster.
Roller Coaster Simulation
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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
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Need to study for Physics? Here are some questions to help you out!!!
StudyStack
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A brief and basic explanation of speed, velocity and acceleration. There is also a tool to create your own graphs for accelerating objects and a short quiz to test your knowledge.
Edinformatics.com
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Interactive Java applets that can be downloaded or run from the website. Graphics are excellent. Covers several less common topics, e.g. in heat and thermodynamics.
Physics Education Technology Project
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A list of equations and constants for AP Physics B and C exams, organized by subject.
PhysicsLAB
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This website contains information and diagrams regarding the physical principles describing the motion of an Atwood machine. It also has a form in which you can plug in numbers and get results for tension.
gsu.edu Atwood machine
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