Wednesday, 10 July 2013 15:53

## B1-01 CENTER OF MASS - DISC SECTION

• ID Code: B1-01
• Purpose: Demonstrate finding center of mass for an irregularly-shapped object
• Description: When the crescent shaped object is suspended from one of the holes along its perimeter, the center of mass will be directly below the suspension point, as defined by the plumb bob. When the object is suspended from the hole at its center of mass, it remains stable in any angular position.

Questions: How do you find the position of the center of mass of this object? (A: From the intersection of lines) Why does the object remain stable when it is suspended at its center of mass?

See also demonstration B1-09: CENTER OF MASS - TRIANGLE. These two demonstrations use the same stand and are often taught together.
• Availability: Available
• Loc codes: B2
• #### B1-01 CENTER OF MASS - DISC SECTION

Demonstrate finding center of mass for an irregularly-shapped object Read More
• #### B1-02: CENTER OF MASS - LEANING TOWER

Demonstrate the effect of center of mass location Read More
• #### B1-03: CENTER OF MASS - LEANING TOWER ON INCLINED PLANE

Demonstrate equilibrium when its center of mass is above its base Read More
• #### B1-04: Center of Mass - Brass Barbell

Demonstrate stable equilibrium when supported at center-of-mass Read More
• #### B1-05: CENTER OF MASS - PLUMBER'S HELPER

Locate the center of mass of an irregular object Read More

• #### B1-08: STATES OF EQUILIBRIUM - CONE

Illustrate stable, unstable, and neutral equilibrium Read More
• #### B1-09: CENTER OF MASS - TRIANGLE

Demonstrate the process of locating the center of mass Read More

• #### B1-12: CENTER OF MASS - HINGED STICK PARADOX

Illustrate the center of mass in a surprising way Read More
• #### B1-13: CENTER OF MASS - FORK AND SPOON ON TOOTHPICK

Illustrate the center of mass in a surprising way Read More
• #### B1-14: CENTER OF MASS - BOTTLE

Illustrate the center of mass in a surprising way Read More
• #### B1-15: TOPPLING CYLINDERS

Illustrate stable and unstable equilibrium in a surprising way Read More
• #### B1-16: CORBELED ARCH

Illustrate how the center of mass affects the stability of an arch Read More
• #### B1-17: CENTER OF MASS - STICKS

Illustrate the center of mass in a surprising way Read More
• #### B1-18: Center of Mass - Soda Can and Water

Show how moving the center of mass of an object changes how it balances. Read More
• #### B1-21: BALANCE BEAM - VARIATION ON THE TIGHTROPE WALKER

Show how arms or a pole are used to obtain greater stability Read More
• #### B1-22: CENTER OF GRAVITY USING TEETER TOTTER

Determine the center of gravity of the human body Read More
• #### B1-24: CENTER OF MASS - CARTS ON BALANCE BOARD

Show that the center of mass may remain at rest during motion within the system Read More
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