# Statics of Rigid Bodies

## B1-18: Center of Mass - Soda Can and Water

Purpose: To demonstrate how an object's behaviour can change when its center of mass does

## F2-25: BALANCE PARADOX - BUOYANCY WITH CROSSOVER

Category: F2 Buoyancy
Purpose: Present buoyancy in a paradoxical way.

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

Purpose: Demonstrate the effect of moment of inertia.

## D2-04: MOMENT OF INERTIA RODS

Purpose: Demonstrate dynamic effects of the center of mass and moment of inertia

## B4-33: EGG CRUSHER

Category: B4 Elasticity
Purpose: Show that an egg can support unexpectedly high forces due to its curved shape.

## B4-32: CAN CRUSHER - WALL STABILITY

Category: B4 Elasticity
Purpose: Show how a small change in the geometry of the can wall can dramatically affect its ability to support a load.

## B4-31: FAILURE OF WOOD IN COMPRESSION

Category: B4 Elasticity
Purpose: Demonstrate the dependence of the compressional strength of wooden dowels on their diameter and length.

## B4-21: DEFLECTION OF BEAM - OPTICAL LEVER

Category: B4 Elasticity
Purpose: Demonstrate the small deflection of an aluminum beam due to weighting between supports.

## B4-14: ELASTIC LIMIT OF WIRE

Category: B4 Elasticity
Purpose: Demonstrate the variation in tensile strength with wire diameter.

## B4-13: ELASTIC LIMIT OF A BALLOON

Category: B4 Elasticity
Purpose: Burst a balloon.

## B4-12: ELASTIC LIMIT OF SOLDER SPRING

Category: B4 Elasticity
Purpose: Demonstrate the elastic limit for an inherently inelastic object.

## B4-11: ELASTIC LIMIT OF RUBBER BAND

Category: B4 Elasticity
Purpose: Demonstrate Hooke's law and elastic limit.

## B4-04: SPRING AND STRING THING

Category: B4 Elasticity
Purpose: Illustrate series and parallel springs in a counterintuitive way.

## B4-02: HOOKE'S LAW - COMPRESSING A SPRING

Category: B4 Elasticity
Purpose: Demonstrate Hooke's law for a spring under compression.

## C6-03: INCLINED PLANE - FRICTION WITH THREE BLOCKS

Category: C6 Friction
Purpose: Illustrate different coefficients of friction.

## C4-61: ACCELERATION ON A SCALE

Purpose: Illustrate forces in an accelerating system.

## C3-06: INERTIA: JENGA

Purpose: Demonstrate inertia of rest.

## B3-21: CHISEL AS WEDGE

Category: B3 Simple Machines
Purpose: Demonstrate the mechanical advantage of a wedge

## B3-15: FOOL'S TACKLE

Category: B3 Simple Machines
Purpose: Illustrate analysis of forces in a pulley system

## B3-14: EQUILIBRIUM PARADOX - SCALES AND PULLEY

Category: B3 Simple Machines
Purpose: Counterintuitive demonstration involving pulley system
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• #### D2-01 RING AND DISC ON INCLINED PLANE

Demonstrates effect of rotational inertia on acceleration of an object Read More
• #### D2-02: Miscellaneous Rolling Bodies On Inclined Plane

Demonstrates effect of rotational inertia on acceleration of an object Read More
• #### D2-03: CANS ON INCLINED PLANE - WITH AND WITHOUT WATER

Illustrate the effect of moment of inertia on rolling acceleration. Read More
• #### D2-04: MOMENT OF INERTIA RODS

Demonstrate dynamic effects of the center of mass and moment of inertia Read More
• #### D2-05: DUMBBELL - VARIABLE MOMENT OF INERTIA

Demonstrate the effect of moment of inertia. Read More
• #### D2-11: HINGED STICK AND FALLING BALL

Application of the rotational analog of Newton's second law. Read More
• #### D2-12: TOPPLING CHIMNEY

Demonstrate how a toppling chimney breaks up. Read More
• #### D2-13: RACING PENDULA

Illustrate in a counter-intuitive way the effect of moment of inertia on rotational acceleration. Read More
• #### D2-21: CENTER OF PERCUSSION - BAT AND MALLET

Demonstrate the center of percussion using a baseball bat. Read More
• #### D2-31 OBERBECK CROSS

Illustrates rotational analog of Newton's second law of motion Read More
• #### D2-32: AIR TABLE - LINEAR AND ANGULAR ACCEL OF A DISC

Illustrate the accelerating disc problem. Read More
• #### D2-41: MOMENTS OF INERTIA ABOUT THREE PRINCIPAL AXES

Illustrate the three principal axes of a thin aluminum plate. Read More
• #### D2-42: MOMENT OF INERTIA -TORSIONAL CHAIR AND BOARD

Demonstrate moment of inertia using the torsional chair. Read More
• #### D2-43: MOMENT OF INERTIA - TORSIONAL CHAIR AND WEIGHTS

Demonstrate the effect of moment of inertia. Read More
• #### D2-51: BICYCLE WHEEL PENDULUM

Demonstrate the Parallel Axis Theorem. Read More
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