# Needs New Photo

## F1-05: DOES WATER SEEK ITS OWN LEVEL?

Purpose: A trick to challenge the students.

## F1-04: EQUILIBRIUM TUBES

Purpose: Demonstrate that pressure is transmitted equally throughout a fluid.

## F1-03: PASCAL'S VASES

Purpose: Demonstrate that pressure is dependent only on depth, and not on the shape of the container.

## F1-02: FLUID PRESSURE VS DEPTH - ANEROID GAUGE

Purpose: Show water pressure versus depth with an aneroid gauge.

## D3-41: AIR TABLE - RECTANGULAR PUCK COLLISIONS

Purpose: Qualitatively show conservation of angular momentum in collisions of a circular puck with a rectangular puck.

## D3-32: KEYWHIP

Purpose: Demonstrate angular momentum conservation in a surprising way.

## D4-24: GYROCOMPASS - MODEL

Category: D4 Gyroscopes
Purpose: Demonstrate how a gyrocompass works.

## D3-12: SWING MODEL

Purpose: Model the pumping of a swing using conservation of angular momentum.

## D3-06: ROTATING CHAIR - HELICOPTER MODEL

Purpose: Demonstrate conservation of angular momentum.

## D3-04: ROTATING STOOL AND WEIGHTS

Purpose: Demonstrate conservation of angular momentum.

## D2-43: MOMENT OF INERTIA - TORSIONAL CHAIR AND WEIGHTS

Purpose: Demonstrate the effect of moment of inertia.

## D2-42: MOMENT OF INERTIA -TORSIONAL CHAIR AND BOARD

Purpose: Demonstrate moment of inertia using the torsional chair.

## D2-41: MOMENTS OF INERTIA ABOUT THREE PRINCIPAL AXES

Purpose: Illustrate the three principal axes of a thin aluminum plate.

## D2-32: AIR TABLE - LINEAR AND ANGULAR ACCEL OF A DISC

Purpose: Illustrate the accelerating disc problem.

## D2-21: CENTER OF PERCUSSION - BAT AND MALLET

Purpose: Demonstrate the center of percussion using a baseball bat.

## D2-13: RACING PENDULA

Purpose: Illustrate in a counter-intuitive way the effect of moment of inertia on rotational acceleration.

## D2-12: TOPPLING CHIMNEY

Purpose: Demonstrate how a toppling chimney breaks up.

## D2-11: HINGED STICK AND FALLING BALL

Purpose: Application of the rotational analog of Newton's second law.

## D2-05: DUMBBELL - VARIABLE MOMENT OF INERTIA

Purpose: Demonstrate the effect of moment of inertia.

## D2-03: CANS ON INCLINED PLANE - WITH AND WITHOUT WATER

Purpose: Illustrate the effect of moment of inertia on rolling acceleration.
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• #### D3-01 MASSES SLIDING ON ROTATING CROSSARM

Illustrates conservation of angular momentum Read More
• #### D3-02: MASS ON STRING - ORBITS WITH VARYING RADIUS

Illustrates conservation of angular momentum Read More
• #### D3-03 ROTATING CHAIR AND WEIGHTS

Illustrates conservation of angular momentum Read More
• #### D3-04: ROTATING STOOL AND WEIGHTS

Demonstrate conservation of angular momentum. Read More
• #### D3-05 ROTATING CHAIR AND BICYCLE WHEEL

Illustrates conservation of angular momentum Read More
• #### D3-06: ROTATING CHAIR - HELICOPTER MODEL

Demonstrate conservation of angular momentum Read More
• #### D3-07: ROTATING PLATFORM

Demonstrate rotational kinematics and inertia. Read More
• #### D3-12: SWING MODEL

Model the pumping of a swing using conservation of angular momentum. Read More
• #### D3-21: INVERSE SPRINKLER - GLASS MODEL

This is a non-working sprinkler that was used for data in an American Journal of Physics paper. Read More
• #### D3-22: INVERSE SPRINKLER - METAL MODEL

Demonstrate the Feynman inverse sprinkler effect. Read More
• #### D3-31: AIR TABLE - TETHERBALL

Show qualitatively an example of non-conservation of angular momentum. Read More
• #### D3-32: KEYWHIP

Demonstrate angular momentum conservation in a surprising way. Read More
• #### D3-33: Centripetal Acceleration - Rotating Ball and Brick

Illustrate centripetal force and its relationship to velocity and radius. Read More
• #### D3-41: AIR TABLE - RECTANGULAR PUCK COLLISIONS

Qualitatively show conservation of angular momentum in collisions of a circular puck with a rectangular puck. Read More
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