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Learn more about acceleration with free physics videos, worksheets, and other online tools. We've collected the best physics resources from around the web, and they're all 100% free.
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.

NASA gives a great summary and explanation of all Newton's laws of motion on one website.

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.

This provides a list of constants often used in Physics

This is great for kids to understand what happens in a simple situation when a ball's mass changes or the force on it is increased or decreased…they can see the effect on acceleration

Motion graphs to demonstrate constant acceleration motion.

This site has tutorials on various trajectory problems. It includes interactive trajectory calculators.

Explanations, formulae, and excellent illustrations covering the fundamentals of uniform circular motion and centripetal force.

This is an excellent applet and calculator showing how projectiles can be fired into orbit, or not, depending upon initial velocity.

This is a very nice applet and calculator that illustrates and allows the calculation of trajectories of projectiles fire with different velocities and at different angles.

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