In this video, Salman Khan of Khan Academy introduces the basic concepts of motion. Part 2 of 3.
Khan Academy
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Hundreds of free games illustrating basic principles of physics.
PhysicsGames.net
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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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Diagrams, equations and description of impulse and momentum.
Spark Notes
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In this video, Salman Khan of Khan Academy introduces the basic concepts of motion. Part 1 of 3.
Khan Academy
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Visually shows collisions of different masses and the same masses.
Fear Of Physics
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Watch the collisions of two balls.Change relative masses, initial velocity, and angle of the collision. It makes the collision angles very clear, and the controls are sort of fun.
Physics Department at Virginia University
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Describes in detail and simulation form the physics behind rigid body collisions. It also provides detailed explanations of the different forces involved such as thrust, damped, and gravity.
My Physics Lab
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