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Inertia - Pen In Bottle
Purpose
To illustrate inertia of rest.
Equipment
Cola bottle, 12" embroidery hoop, and Pilot pen,
Suggestions
Balancing this thing requires a good deal of practice and/or skill!!
Images
Description
The felt tip end of a Pilot pen is balanced on a 12" embroidery hoop, which in turn is balanced on a Coca-Cola bottle. Yanking the hoop out from under the pen by the leading side allows the pen to fall straight downward into the Cola bottle.
References
Martin Gardner, Physics Trick of the Month: Bottle, Hoop, and Dime TPT 32, 80 (1994).
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See pagesc1. center of mass motion
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See pagesc3. first law of motion
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See pagesc4. second law of motion
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See pagesc5. third law of motion
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See pagesc6. friction
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See pagesc7. collisions
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See pagesc8. mechanical energy & power
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See pagesc1. center of mass motion
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See pagesc3. first law of motion
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See pagesc4. second law of motion
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See pagesc5. third law of motion
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See pagesc6. friction
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See pagesc7. collisions
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See pagesc8. mechanical energy & power
Physics Lab Demos