post lab 5 - Post lab 5 1 Comparing the different...

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Post lab 5: 1. Comparing the different experiments, was the change in the total momentum conserved in each of the experiments? Did the change depend on the type of collision? What does this say about momentum in the different types of collisions? (Hints: think about what the error’s actually mean, This experiment showed that the change in momentum does not depend on the type of collision. In both elastic and inelastic collisions, change in momentum is conserved. Momentum is always conserved in a closed system where there is no air resistance and no friction. When in an open system, momentum is not conserved where air resistance and friction are present. In the experiment conducted in class, the total change in momentum was fairly close. 2. Comparing the different experiments, was the change in the total kinetic energy conserved to first approximation in each of the experiments? Did the change depend on the type of collision? What does this say about kinetic energy in the different types of collisions? The change in total kinetic energy of a system in the elastic collision is always conserved. However, the total change in kinetic energy is not conserved in inelastic collisions. A portion of the energy is converted to another form of
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This document was uploaded on 09/14/2009.

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post lab 5 - Post lab 5 1 Comparing the different...

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