1 Mechanics

Sail against the wind-Video

demonstration image
Catalog: 
1J30.60B
Location: 
3_1
Video Encyclopedia : Use a skateboard cart with a foam core sail

Wine Butler

The center of mass must be over the support.
Catalog: 
1J20.60
Location: 
Ab5
A center of gravity demonstration

Centrifugal Force

Ball on a string.
Catalog: 
1D50.10
Location: 
Aa5
Ball on a string is spun around your head.

Loaded Beam/Bridge?

Catalog: 
1J40.40B
Location: 
Ac2
Non-concurrent forces app.(4 protractors)

Stacking Tops

Catalog: 
1Q60.171
Location: 
Ae3
A crank up handle with a trigger release sets the tops spinning. They can be stacked on each other.

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.

Reaction gliders-Video

demonstration image
Catalog: 
1H10.15B
Location: 
3_1
Video Encyclopedia: Burn a string holding a compressed spring between two air gliders.

Stable Gyro

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

Egg crusher - Video

demonstration image
Catalog: 
1J30.75
Location: 
3_1
Video Encyclopedia :A raw egg can be squeezed between two hard foam rubber pads with a force of over 150 lbs.

Ladder Against the Wall

The leaning ladder has a protractor to measure the angle. The footing has four d
Catalog: 
1K10.20A
Location: 
7 top
A ladder leans against a wall. The wall is in contact with wheels on the ladder making it frictionless. The floor is in contact with ladder with friction. There are four choices for the frictional surface. A weight can be hung from any of the seven rungs of the ladder. A protractor with plumb bob measure the angle the ladder leans. A spring force guage can be connected to the bottom rung.

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