# 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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• #### B2-02: SUM OF FORCES - SPRING SCALES

Show that the sum of forces exerted on the mass by the scales is constant Read More
• #### B2-03: EQUILIBRIUM OF FORCES - INCLINED PLANE

Demonstrate equilibrium of forces Read More

• #### B2-11: EQUILIBRIUM OF FORCES - OHAUS PROJECTION

Demonstrate equilibrium of forces Read More
• #### B2-12: EQUILIBRIUM OF FORCES - BOARD BACKGROUND

Demonstrate equilibrium of forces Read More
• #### B2-14: SUM OF FORCES - LARGE ROPE VERSION

Develop a feel for equilibrium of forces on a large scale Read More

• #### B2-21: CONCEPT OF TORQUE - TORSIONAL CHAIR

Introduce the concept of torque Read More
• #### B2-22: TORQUE - PHYSICAL DEFINITION

Introduce the concept of torque Read More
• #### B2-23: TORQUE CONDITION FOR EQUILIBRIUM

Demonstrate that equilibrium of forces is an insufficient condition for static equilibrium Read More
• #### B2-31: EQUILIBRIUM OF TORQUES - WHEELS AND AXLES

Demonstrate equilibrium of torques Read More

• #### B2-34: EQUILIBRIUM OF TORQUES - ANGLE BRACKET

Verify the equation for torques when the center of mass is outside the object Read More
• #### B2-35: EQUILIBRIUM OF TORQUES ON METERSTICK

Demonstrate equilibrium of torques Read More
• #### B2-36: EQUILIBRIUM OF TORQUES ON METERSTICK - ROTATORS

Demonstrate equilibrium of torques Read More