1Q Rotational Dynamics

Ring & Disk of Equal Mass on an Incline

Catalog: 
1Q10.32
Location: 
Ad4
A ring and disk with the same diameter, width, and approximately the same mass are rolled down an incline.

Maxwell's Top

Tracer spiral of Maxwell's top
Catalog: 
1Q50.90
Location: 
Ae5
This gyro, very similar to the one designed by Prof. Maxwell, is designed to show that a gyroscope will always react at 90 degrees to an applied force. To show this the spindle of the heavy spinning wheel, which is pivoted at it's center of gravity, will follow an irregularly shaped object (in this case a Tracer Spiral).

Hinged Stick and Ball

Catalog: 
1Q20.50C
Location: 
Z 2

A ball jumps from the end of a hinged board into a cup as the stick rotates.

Three Balls Discrepant Event

One ball rolls slower than the other two.
Catalog: 
1Q10.450B
Location: 
Ad4
Three metal balls roll back and forth. When rolled one way all three balls roll side by side. When rolled the other way one ball rolls ahead of the other two. Students are challenged to explain why.

Racing Spheres

The steel sphere has a mass of 66 g and the hollow sphere has a mass of 21 g. Th
Catalog: 
1Q10.450A
Location: 
Ad4
A solid sphere is raced against a hollow sphere. They have the same diameter and similar mass.

Stable Gyro

demonstration image
Catalog: 
1Q50.70B
Location: 
Ae3
Stable gyros

Inertia Wands and Two Students

demonstration image
Catalog: 
1Q10.10
Location: 
Ad4
Two wands have the same mass. One wand has the mass concentrated at the ends. The other wand has the mass concentrated at the center. Have two students flip them back and forth as fast as they can.

Tippe Tops

Place the launching handle over the top.
Catalog: 
1Q60.30A
Location: 
Ae3
The tippe top flips.

Torsion pendulum inertia

A disk hanging from a wire oscillates.
Catalog: 
1Q10.20A
Location: 
Ad4
Torsion pendulum inertia

Football Spin

demonstration image
Catalog: 
1Q60.35A
Location: 
Ae4
Spin a football on its side and it rises up onto it's pointed end.

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