Physics Demo Number: 203
Approximate
Run Time: 10 min
Demo Description
Pasco rotating chair and modified Pasco Bicycle wheel substituted for Dentist Chair and old rim-loaded bike wheels.
Scientific Principles
One may spin a rim-loaded bike wheel up to large spin angular momentum and show generation of spin angular momentum of the 'lecturer-wheel-chair' system , when the lecturer forces the wheel to swap ends.Equipment
Equipment Location
[E-3-3]Instructions
The first photos show the new bike wheel with its shop made air foils.
It is hanging from the ceiling cord in the lecture hall (with no spin) in the first photo. This is the expected behavior for releasing the wheel from an axle- horizontal configuration
The second photo has captured the wheels precessional and spin motions after having given the wheel a large spin angular momentum with the device shown in photo three, and then releasing the wheel from a horizontal axis configuration.
The third photo shows the motor with friction disk used to spin the wheel up to speed for the demo.
