Experiment 3: Force and Potential Energy
Giselle Zornberg (ut eid: gzz57)
PHY 103M Section #60260 (Mon 911am)
Introduction:
The purpose of this experiment is to verify that the formula F
mag
= dU/ dx provides the
correct result for the force between two bar magnets, where F
mag
is the magnetic force on the
glider and U is the magnetic potential.
This lab will consist of calculating the final velocity of
the glider after it has converted all its potential energy from the magnets into kinetic energy for
different distances from the magnet, utilizing the formula KE = (1/2)mv
2
to find the final kinetic
energy and, in turn, the initial magnetic potential energy.
In order to confirm that force is equal
to the negative derivative of the magnetic potential graph at a specific separation distance x
s
, the
force exerted upon the glider at separation distance x
s
will be measured by suspending weight
from a thread connected to the glider and directed over the pulley, utilizing the formula F = mg.
If the negative derivative of the magnetic potential graph at the separation distance x
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 Spring '08
 Staff
 Physics, Energy, Force, Kinetic Energy, Potential Energy, Fmag, separation distance xs

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