Zoheb Noorani
Todd Chapman
Experiment 4
Introduction
The purpose of this lab is to show that in elastic and inelastic collisions momentum is
conserved and that in elastic collisions kinetic energy is conserved while it is not in an
inelastic collision. The way that we test these things is by taking 3 different gliders: 2
large ones and 1 smaller one, an air track and 2 photogates. The way that we test the
elastic collision is by taking the 2 large gliders and setting one between the 2
photogates still and send the other glider thorough the photogate at a velocity and
measure the time it takes to go through the photogates and finding the velocity,
momentum and kinetic energy. We repeated this process, but with one smaller one and
one larger one. For the inelastic we did the same 2 trials, but instead of running into the
bumpers of the gliders we ran the gliders into Velcro that we had attached to the
bumpers so the gliders stuck together. We than compared the ratio of the initial and final
momentums and kinetic energies.
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 Spring '08
 Staff
 Energy, Kinetic Energy, Momentum

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