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PhET Interactive Simulations University of Colorado Boulder
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Collision Lab
This simulation allows students to use an air hockey table to investigate simple collisions in 1D and more complex collisions in 2D. Students can experiment with the number of discs, masses, initial conditions, and can vary the elasticity and see how the total momentum and kinetic energy changes during collisions.
[b]Sample Learning Objectives include:[/b]
*Draw "before-and-after" pictures of collisions.
*Construct momentum vector representations of "before-and-after" collisions.
*Apply the law of conservation of momentum to solve problems.
*Explain why energy is not conserved and varies in some collisions.
*Determine the change in mechanical energy in collisions of varying elasticity.
*Explain what elasticity means.
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