# PHYS141

## F2-03: CARTESIAN DIVER - EXPLICIT VERSION

Category: F2 Buoyancy
Purpose: Demonstrate explicitly how a cartesian diver works by showing how the water enters the diver when the pressure in the cylinder is increased.

## F1-11: HYDRAULIC PRESS

Purpose: Demonstrate dramatically Pascal's Law and the large forces attainable using hydraulic systems.

## F1-03: PASCAL'S VASES

Purpose: Demonstrate that pressure is dependent only on depth, and not on the shape of the container.

## D2-51: BICYCLE WHEEL PENDULUM

Purpose: Demonstrate the Parallel Axis Theorem.

## D2-11: HINGED STICK AND FALLING BALL

Purpose: Application of the rotational analog of Newton's second law.

## D1-83: SPOOL

Purpose: Illustrate a counterintuitive problem in rotational dynamics.

## D1-55: ROTATING ELASTIC RINGS

Purpose: Demonstrate "centrifugal reaction" and to indicate why the earth is oblate.

## D1-40: CENTRIPETAL FORCE ON ROTATING RUBBER BAND

Purpose: Demonstrate centripetal force and centrifugal reaction.

## D1-39: PENNY AND COAT HANGER

Purpose: Demonstrate centripetal force and centrifugal reaction in a dramatic way.

## D1-30: TRAJECTORY FROM CIRCULAR ORBIT - OVERHEAD PROJECTOR

Purpose: Show that the instantaneous velocity of an object executing uniform circular motion is tangent to the circle.

## C7-25: SUPERBALL, VACUUM MUD AND WOOD BLOCK COLLISIONS

Category: C7 Collisions
Purpose: Show that a larger impulse is imparted by an elastic collision.

## C7-12: COLLISION OF BALLS - ONE LIGHTER MASS

Category: C7 Collisions
Purpose: Show what happens when one mass in a collision ball set is different from the others.

## C7-04: AIR TRACK - COLLISION VELOCITY MULTIPLIER

Category: C7 Collisions
Purpose: Illustrate velocity multiplication with a three-to-one mass ratio collision.

## C8-34: POWER - INSTRUCTOR DRAGGING CONCRETE BLOCK

Purpose: Demonstrate power

## C8-33: POWER - USING GRAVITY

Purpose: Demonstrate mechanical power.

## C8-03: GALILEO'S PENDULUM

Purpose: Demonstrate conservation of energy in a simple system.

## C6-11: SLIDING FRICTION - LECTURE TABLE AND FELT

Category: C6 Friction
Purpose: Show the effect on frictional force of velocity, normal force, and contact area.

## G4-22: CHLADNI FIGURES - OSCILLATOR DRIVEN

Purpose: Show two-dimensional standing waves in a metal plate

## C5-31: AIR TRACK - SAILING UPWIND

Purpose: Show how force components can be used to sail against the wind.

## C5-12: BALLISTIC CANNON CARTS

Purpose: Demonstrate Newton's third law of motion
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• #### G1-01 EXAMPLES OF SIMPLE HARMONIC MOTION

Illustrates simple harmonic motion Read More
• #### G1-11 COMPARISON OF SHM AND UCM

Demonstrates the relationship between simple harmonic motion and uniform circular motion Read More
• #### G1-12: PENDULUM AND ROTATING BALL

Demonstrate that simple harmonic motion is the projection of uniform circular motion Read More
• #### G1-13: MASS ON STRING

Illustrate uniform circular motion Read More
• #### G1-14 PENDULA WITH DIFFERENT MASSES

Demonstrates independence of a simple pendulum's period with mass of the bob Read More
• #### G1-15 PENDULA WITH 4 TO 1 LENGTH RATIO

Shows that period of a simple pendulum is proportional to the square root of its length Read More
• #### G1-16: PENDULUM WITH LARGE OSCILLATION

Show the difference between pendula with small amplitude and large amplitude of oscillation, and to show rotational motion where the Read More
• #### G1-17: PENDULUM WITH LARGE-ANGLE OSCILLATION - PORTABLE

Illustrate large-angle pendular oscillations and the 360 degree pendulum Read More
• #### G1-18: PENDULUM WITH FORCE SCALE

Show the tension in the string exerted by a swinging pendulum Read More
• #### G1-20: GALILEO'S PENDULUM AND THE PENDULUM RELEASE CONUNDRUM

Encourage thought about the motion of a pendulum and related forces Read More
• #### G1-31: HOOKE'S LAW AND SHM

Quantitatively demonstrate how the spring constant affects the period of a mass on a spring Read More

• #### G1-33 MASSES AND SPRINGS WITH SPIDER

Compares frequencies of various mass-spring combinations Read More
• #### G1-34: AIR TRACK - SIMPLE HARMONIC MOTION

Demonstrate simple harmonic motion of a mass held by two springs Read More
• #### G1-35: MASS ON SPRING - EFFICIENT MODEL

Illustrate the motion of a mass on a spring Read More
• #### G1-36: MASS ON SPRING WITH FORCE MEASUREMENT

Display the time dependence of the force of a mass oscillating on a spring Read More
• #### G1-37: MASS ON SPRING WITH ULTRASONIC RANGER

Plot graphs of position, velocity and acceleration for a mass oscillating on a spring Read More
• #### G1-41: TORSIONAL PENDULUM - SMALL

Demonstrate torsional SHM, and to show the effect of moment of inertia on the period Read More
• #### G1-43: KLINGER TORSIONAL VIBRATION MACHINE

Demonstrate torsional SHM, and to quantitatively show the effect of moment of inertia on the period Read More
• #### G1-51: INVERTED SPRING PENDULUM

Illustrate a form of periodic vibration Read More
• #### G1-52 STRINGLESS PENDULUM

Demonstrates an example of SHM Read More
• #### G1-53: SHM - CAN IN WATER TANK

Demonstrate one form of SHM Read More
• #### G1-54: MASS'S DOUBLE PENDULUM

Demonstrate the transition of potential energy into energy of oscillation of the pendulum, and the operation of an escapement Read More
• #### G1-55: INERTIA BALANCE

Illustrate the measurement of inertial mass using SHM Read More
• #### G1-56: INVERTED PENDULUM - SABER SAW

Show the inverted pendulum dramatically Read More
• #### G1-57: INVERTED PENDULUM - SPEAKER DRIVEN

Demonstrate the conditions for stability of an inverted pendulum Read More

Analog to the longitudinal motion of a particle in a particle accelerator driven by a sinusoidal accelerating potential Read More
• #### G1-59: BIFILAR PENDULUM

Illustrate a system with two pendular modes of oscillation Read More

• #### G1-73: LISSAJOUS FIGURES - FOURIER SYNTHESIZER

Show stable Lissajous figures Read More
• #### G1-74: LISSAJOUS FIGURES - LASER AND LOUDSPEAKER

Show Lissajous figures created by music to form a laser show Read More
• #### G1-81: OUIJA WINDMILL

Illustrate a combination of simultaneous orthogonal oscillations Read More
• #### G1-82: PENDULUM WAVES

Create waves in a very dramatic way using a series of fifteen carefully adjusted independent pendula Read More
• #### G1-83: PENDULUM WAVES - COMMERCIAL VERSION

Create waves in a very dramatic way using a series of carefully adjusted pendula of various lengths Read More
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