# Statics of Rigid Bodies

## B3-02: LEVERS - THREE CLASSES

Category: B3 Simple Machines
Purpose: Demonstrate the three classes of levers

## B3-01: LEVER AND LOADED WAGON

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

## B2-43: CRANE BOOM

Purpose: Demonstrate a crane boom

## B2-42: ARM MODEL

Purpose: Model the forces occurring in the arm

## B2-41: ROBERVAL BALANCE

Purpose: Demonstrate a paradox in equilibrium of forces and torques

## B2-36: EQUILIBRIUM OF TORQUES ON METERSTICK - ROTATORS

Purpose: Demonstrate equilibrium of torques

## B2-35: EQUILIBRIUM OF TORQUES ON METERSTICK

Purpose: Demonstrate equilibrium of torques

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

Purpose: Verify the equation for torques when the center of mass is outside the object

## B2-33: EQUILIBRIUM OF TORQUES - SMALL

Purpose: Demonstrate equilibrium of torques

## B2-31: EQUILIBRIUM OF TORQUES - WHEELS AND AXLES

Purpose: Demonstrate equilibrium of torques

## B2-23: TORQUE CONDITION FOR EQUILIBRIUM

Purpose: Demonstrate that equilibrium of forces is an insufficient condition for static equilibrium

## B2-22: TORQUE - PHYSICAL DEFINITION

Purpose: Introduce the concept of torque

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

Purpose: Introduce the concept of torque

## B2-16: VECTOR ADDITION WITH ROPE AND STUDENTS

Purpose: Demonstrate vector addition of forces

## B2-14: SUM OF FORCES - LARGE ROPE VERSION

Purpose: Develop a feel for equilibrium of forces on a large scale

## B2-12: EQUILIBRIUM OF FORCES - BOARD BACKGROUND

Purpose: Demonstrate equilibrium of forces

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

Purpose: Demonstrate equilibrium of forces

## B2-04: VERTICAL FORCES - FOUR SPRING SCALES

Purpose: Show addition of forces along a line

## B2-03: EQUILIBRIUM OF FORCES - INCLINED PLANE

Purpose: Demonstrate equilibrium of forces

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

Purpose: Show that the sum of forces exerted on the mass by the scales is constant
Page 2 of 4
• #### B4-01 HOOKE'S LAW

Demonstrate the linear relationship between force and stretching for a simple spring. Read More
• #### B4-02: HOOKE'S LAW - COMPRESSING A SPRING

Demonstrate Hooke's law for a spring under compression. Read More
• #### B4-03: SPRINGS IN SERIES AND PARALLEL

Show static combinations of springs Read More
• #### B4-04: SPRING AND STRING THING

Illustrate series and parallel springs in a counterintuitive way. Read More
• #### B4-11: ELASTIC LIMIT OF RUBBER BAND

Demonstrate Hooke's law and elastic limit. Read More
• #### B4-12: ELASTIC LIMIT OF SOLDER SPRING

Demonstrate the elastic limit for an inherently inelastic object. Read More

• #### B4-14: ELASTIC LIMIT OF WIRE

Demonstrate the variation in tensile strength with wire diameter. Read More
• #### B4-21: DEFLECTION OF BEAM - OPTICAL LEVER

Demonstrate the small deflection of an aluminum beam due to weighting between supports. Read More
• #### B4-31: FAILURE OF WOOD IN COMPRESSION

Demonstrate the dependence of the compressional strength of wooden dowels on their diameter and length. Read More
• #### B4-32: CAN CRUSHER - WALL STABILITY

Show how a small change in the geometry of the can wall can dramatically affect its ability to support a Read More
• #### B4-33: EGG CRUSHER

Show that an egg can support unexpectedly high forces due to its curved shape. Read More
• 1