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Penny on a Coat Hanger

A hanger and a quarter

Concept Overview:

1. Forces in vertical circular motion

Lecturer Procedure

Step(s) to FollowExpected Result

1. Place quarter on the electrical tape.

2. Tilt hanger

Quarter will fall off - this will show that the surface is not sticky

1. Place quarter on the electrical tape.

2. Allow hanger to hang on your finger.

3. Swing in vertical circle                                                                                         

Quarter will remain attached to the hanger until motion is slowed such that the quarter will fall off.

This demonstration requires lecturer practice prior to doing in front of the students.  5-10 minutes should be sufficient

Transcript

There is no audio with this recording.

Identifier
M: CM - 009