baton with orange tape in the middle

 

Code Number: 1D30.30

Demo Title: Baton

Condition: Good

Principle: Center of Mass

Area of Study: Mechanics

Equipment: 

Baton

Procedure: 

You can balance the system on your finger.  The balance point is marked by the orange tape on the rod. Throw the system into the air with some rotational motion.  You should see the system rotate about it's center of mass ( again the point marked by the orange tape ).