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Physics 30 Jan 01 Diploma Exam

A student holds identical cylindrical magnets against

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Unformatted text preview: 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 0.150 0.95 0.44 v Aluminum Tube 0.150 0.95 0.76 Written Response—15% 2. Analyze the students’ observations from the falling magnet experiment by • completing the chart below. Include calculations to support the values you write in the chart • explaining the results of this experiment in terms of Lenz’s Law Clearly communicate your understanding of the physics principles that you are using to solve this question. You may communicate this understanding mathematically, graphically, and/or with written statements. Sample Solution: Glass Tube Aluminum Tube Potential Energy of the magnet at position A (J) 1.4 1.4 Acceleration of the magnet through the tube (m/s2) 9.8 3.3 Kinetic Energy of the magnet at position B (J) 1.4 0.47 Mechanical Energy of the magnet at position...
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