Scientific Reasoning
G1-81: OUIJA WINDMILL
Category: G1 Simple Harmonic Motion
Purpose:
Illustrate a combination of simultaneous orthogonal oscillations.
B4-04: SPRING AND STRING THING
Category: B4 Elasticity
Purpose:
Illustrate series and parallel springs in a counterintuitive way.
C5-41: HOURGLASS PROBLEM
Category: C5 Third Law of Motion
Purpose:
Demonstrate the solution to the famous "hourglass problem," or Galileo's water bucket
B3-15: FOOL'S TACKLE
Category: B3 Simple Machines
Purpose:
Illustrate analysis of forces in a pulley system
B2-41: ROBERVAL BALANCE
Category: B2 Equilibrium of Forces and Torques
Purpose:
Demonstrate a paradox in equilibrium of forces and torques
B1-12: CENTER OF MASS - HINGED STICK PARADOX
Category: B1 Center of Mass Statics
Purpose:
Illustrate the center of mass in a surprising way
G2-07: PSYCHOACOUSTIC VIBRATION TRANSDUCER
Category: G2 Resonance and Coupled Oscillations
Purpose:
Challenge your students to recognize pseudoscience while illustrating resonance
C5-02 SPRING AND PULLEY PARADOX
Category: C5 Third Law of Motion
Purpose:
Show that the action-reaction pairs have equal magnitude
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B1-01 CENTER OF MASS - DISC SECTION
Demonstrate finding center of mass for an irregularly-shapped object Read More
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B1-02: CENTER OF MASS - LEANING TOWER
Demonstrate the effect of center of mass location Read More
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B1-03: CENTER OF MASS - LEANING TOWER ON INCLINED PLANE
Demonstrate equilibrium when its center of mass is above its base Read More
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B1-04: Center of Mass - Brass Barbell
Demonstrate stable equilibrium when supported at center-of-mass Read More
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B1-05: CENTER OF MASS - PLUMBER'S HELPER
Locate the center of mass of an irregular object Read More
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B1-06: Double Cone - Large
Demonstrate a center-of-mass paradox Read More
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B1-07: DOUBLE CONE - SMALL
Demonstrate a center of mass paradox Read More
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B1-08: STATES OF EQUILIBRIUM - CONE
Illustrate stable, unstable, and neutral equilibrium Read More
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B1-09: CENTER OF MASS - TRIANGLE
Demonstrate the process of locating the center of mass Read More
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B1-11: BALANCE MAN
Illustrate stable equilibrium Read More
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B1-12: CENTER OF MASS - HINGED STICK PARADOX
Illustrate the center of mass in a surprising way Read More
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B1-13: CENTER OF MASS - FORK AND SPOON ON TOOTHPICK
Illustrate the center of mass in a surprising way Read More
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B1-14: CENTER OF MASS - BOTTLE
Illustrate the center of mass in a surprising way Read More
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B1-15: TOPPLING CYLINDERS
Illustrate stable and unstable equilibrium in a surprising way Read More
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B1-16: CORBELED ARCH
Illustrate how the center of mass affects the stability of an arch Read More
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B1-17: CENTER OF MASS - STICKS
Illustrate the center of mass in a surprising way Read More
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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
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B1-21: BALANCE BEAM - VARIATION ON THE TIGHTROPE WALKER
Show how arms or a pole are used to obtain greater stability Read More
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B1-22: CENTER OF GRAVITY USING TEETER TOTTER
Determine the center of gravity of the human body Read More
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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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