Circle With A Gap

1D55.10A | Aa6
Catalog: 
1D55.10A
Location: 
Aa6
Room: 
PS F175
Quantity: 
1
Instructors: 
Fuchs, Herbots
  • Complete circle
  • The path that the marble takes is shadow projected.
Description: 

A marble is rolled around the inside of a open hoop. Students predict where the ball will go when it reaches the opening. Demo uses an overhead projector.

Instructions: 

This demo is used in conjunction with an overhead projector. The stage is leveled before using.

Purpose: 
Students predict the path a marble will take when it reaches the opening in either the half circle or circle with a gap. Predictions can be drawn on the acrylic stage using dry erase pens.
Parts: 
  • Stage
  • open hoop
  • closed hoop
  • half hoop
  • and marble.