1 Mechanics

One Rope and Three Weights

The middle weight is increased.  ASU copyright
Catalog: 
1J30.26
Location: 
Ab6
A rope is tied to a pole and a heavy weight hangs from a pulley at the other end. There are protractors to measure the deflection of the rope. In the middle a small weight is applied which easily moves the heavy weight.

Accelerometers - Video

demonstration image
Catalog: 
1G20.76B
Location: 
3_1
Video Encyclopedia :Two jars of water, one has a light ball tethered to the bottom, the other has a heavy ball suspended from the top.

Inertia balance - Video

demonstration image
Catalog: 
1F10.11
Location: 
3_1
Video Encyclopedia :Place masses on a platform supported by horizontal leaf springs.

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.

Kinetic and Static Friction

A rolling ball does not move with respect to the surface it is rolling on.
Catalog: 
1K20.30A
Location: 
A ball is rolled on a transparent surface so that the students can see that the part of the rolling ball that makes contact is not moving with respect to that surface.

Conic Sections

The cone disassembled.
Catalog: 
1L20.40B
Location: 
Ac1
Dissectible wooden cone

Shifted air track inertia-Video

demonstration image
Catalog: 
1F20.50
Location: 
3_1
Video Encyclopedia: Move the air track under an air track glider

Rotational Inertia: Racing Soups

The broth soup is very fluid while the split pea soup is solid. The cans are rac
Catalog: 
1Q10.50
Location: 
Ad4
This demonstration is a high drama comparison between the acceleration of split pea verses broth soups.

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