3/4 Arc Steel and Plastic Rings and 1" Ball Bearing

 

Code Number: 1D55.10

Demo Title: Central Forces - Broken Ring

Condition: Good

Principle: Forces Due To Circular Motion

Area of Study: Mechanics

Equipment: 

3/4 Arc Steel and Plastic Rings and 1" Ball Bearings.

Procedure:

Set the arc on the table or overhead projector. Roll the ball bearing against the inside of the arc. When the ball bearing reaches the end of the arc it will exit and roll in a straight line.

References:

  • Harry Rheam,  "Centripetal Force on an Overhead Projector",  TPT, Vol. 33, # 3, p. 182, March 1995.
  • Jonathan Mitschele, "A New Use for an Old Pickle Bucket", TPT, Vol. 32, # 4, Apr. 1994, p. 252.
  • "The Orange Wave", Physics Today, Dec. 2014, p. 96.
  • Borislaw Bilash II, David Maiullo, "I'm Going in a Straight Line", A Demo a Day: A Year of Physics Demonstrations, p. 128.
  • Robert Ehrlich,  "The Missing Circular Arc",  Why Toast Lands Jelly-Side Down, p.  22- 23.
  • James Cunningham and Norman Herr,  "Newton's First Law",  Hands-On Physics Activities with Real-Life Applications, p.  58, 67.
  • Borislaw Bilash II, “The Path of a Marble“, A Demo A Day – A Year of Physical Science Demonstrations, p. 231.
University of Maryland Physics Department QOTW Question #82
University of Maryland Physics Department QOTW Answer #82
1D55.10 - Central Forces - Broken Ring
1D55.10 University of Maryland QOTW  #82