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.

Whirlybird (adjust. ang. mom.) - Video

demonstration image
Catalog: 
1Q20.10B
Location: 
3_1
Video Encyclopedia :A weight over a pulley turns a bar with adjustable weights. on screen timer and protractor helps measurements.

Aircraft Gyro Compass

demonstration image
Catalog: 
1Q50.60
Location: 
Ae2
Aircraft gyro compass

Rotating stool and weights

Extending the weights conserves angular momentum by slowing down the chair.
Catalog: 
1Q40.10A
Location: 
under stairs
A person sits on a rotating stool and moves weights in and out.

Gyro with Adjustable Weights - Video

demonstration image
Catalog: 
1Q50.70C
Location: 
3_1
Video Encyclopedia :A small gyro is at the end of a pivoting rod with an adjustable counterweight.

Racing Disks

Catalog: 
1Q10.40
Location: 
Ae2
A set of four gray disk with the same radius and width, but with differing mass distributions.

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