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Falling Magnet Experiment
Two hollow tubes, one made of glass and the other made of aluminum, are
positioned vertically. A student holds identical cylindrical magnets against the
outside of the tubes and observe that neither tube attracts a magnet. Based on
this observation, the student predicts that each magnet will fall through its
respective tube with an acceleration of 9.81 m/s2. The student and his lab
partner then drop the magnets into the tubes from rest at position A, as shown
Position A Glass tube
conductor Position B The students make the following observations:
The magnets do not touch the sides of the tubes as they fall. The time for the
magnet to fall through the aluminum tube is much greater than is the time for the
identical magnet to fall through the glass tube. Mass of magnet (kg)
Tube length (m)
Time for magnet to fall
from position A to
position B (s) Glass Tube
0.44 26 Aluminum Tube
0.76 Written Response—15%...
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This note was uploaded on 01/14/2014 for the course PHYSICS Physics 30 taught by Professor Quinlan during the Fall '09 term at Centennial High School.
- Fall '09