Demonstrations

Identifier Title Demo Summary
M: EngMom - 026 Breaking Boards

Square boards are broken using either the lecturer's hand or foot.

2 square boards are stacked and placed across a gap between 2 large wooden blocks
M: K - 001 Addition of Displacement Vectors

A self-propelled car is used in conjunction with overhead transparencies to model vectors and vector addition

Overhead transparencies, white paper, self-propelled car, overhead markers
M: K - 002 Jumping Ball

A ball is launched vertically from a car in motion.  The ball will follow an arched path and return to the car.

M: K - 003 Shot/Dropped Balls

A ball is launched horizontally.  At the same time, a ball is released from rest to fall vertically. 

Shot/Dropped Ball Apparatus
M: K - 004 Shoot the Target

A dart is shot at a falling target.

Dart gun rests against apparatus
M: K - 006 Vectors

An apparatus consisting of wooden arrows is used to show vector addition.

Mounted vector apparatus
M: K - 007 Roller on Inclined Plane
M: K - 008 Free Fall with Spark Tape

Spark tape is used to create a visual demonstration of acceleration due to gravity.

Spark tape connected to the free fall apparatus
M: K - 009 Air Track

An air track (1 of 3 sizes) is used to demonstrate assorted concepts related to kinematics, dynamics, energy, and momentum.

Large air track, small air track, and air track mini in the lecture hall
M: Rot - 001 Moment of Inertia Using a Ramp

Objects of similar size that are weighted different are rolled down a ramp to see the effects of their moments of inertia on their motion.

Ramp with rolling objects
M: Rot - 002 Spinning Rod

A rod with mobile weights on the end is set rotating;  A cord is pulled to bring the weights near the center, thus changing the speed of rotation

Spinning rod apparatus
M: Rot - 003 Rotating Platform - Conservation of Angular Momentum

A person sits on a rotating platform and extends their arms outward (with barbells).  As they rotate, they bring their arms in to their chest.

Rotating platform, stool, and barbells
M: Rot - 004 Motor-Driven Gyroscope

A motorized gyroscope demonstrates gyroscopic motion.  2 weights are included in order to vary the motion.

Motor-driven Gyroscope
M: Rot - 005 Free-Fall Rotation

A hinged board is allowed to fall from an angle of 70 degrees.  In doing so, a ball resting on the end of the board falls into a cup mounted closer to the axis of rotation.

A wooden board connected with a hinge to another board is propped at a 70 degree angle with a ball on the outer edge.
M: Rot - 006 Bowling Ball on Air
M: Rot - 007 Bars with Different Moments of Inertia

Two bars of equal mass have different moments of inertia, which is evident upon attempting to rotate them.

2 Bars with Different Moments of Inertia
M: Rot - 008 Hoberman Sphere

A Hoberman Sphere hangs from the ceiling and is set rotation.  Pulling a cord causes the sphere to shrink, which in turn, causes the rotation to increase in speed.

A Hoberman Sphere
M: Rot - 009 Pulleys of Unequal Mass

Identical masses are hung from 2 pulleys that have different masses.  The masses are dropped at the same time and the effects of the differing moments of inertia is evident.

Two pulleys of different masses mounted on a stand rod
M: Rot - 010 Brass Gyroscope

A brass gyroscope is set in motion using a small motor.  It is then allowed to freely spin on the bench or floor.

Brass Gyroscope
M: Rot - 011 Bicycle Wheel Gyroscope

A bicycle wheel is used to demonstrate gyroscopic properties when used by someone on a rotating platform

A stool rests on a rotating platform.  Nearby, a bicycle wheel rests near a foot pedal-driven motor.
M: Rot - 012 Bicycle Wheel on Vertical Rod

A bicycle wheel balances on a vertical point to demonstrate simple gyroscopic behavior

A bicycle wheel rests on a bench next to a ring stand with a pointed tip
M: S - 001 Weighted Inclined Plane Set

A weighted car rests on an inclined plane.  Masses are hung from pulley's attached to the car to hold it in place.  When the plane is removed, the car remains stationary.

An inclined plane with 2 masses hung from it.
M: S - 002 5-lb Weight in Center of Rope

A 5-lb weight is placed in the center of a piece of rope.  Someone attempts to make the rope horizontal.

A 5-lb weight is hung in the center of a piece of rope extended over the lecture bench and an additional demo bench
M: S - 004 Pulley Systems

An assortment of pulleys

4 separate pulleys hang from a horizontal rod.
M: S - 005 2 Scales and a Board

A board is placed across 2 scales.  A weight is rolled between scales to show how the weight is shared.

A board is placed across 2 antique scales
M: S - 006 Meter Stick on Movable Supports
M: S - 008 Tricky Disks

Two disks roll are allowed to roll on a ramp after being released from their position in the center of the ramp.  Due to weighting on one of the disks, it will roll uphill, whereas the non-weighted disk rolls downhill.  

Two wooden disks on an angled ramp
M: S - 009 Leaning Tower of Pisa

A model of the Leaning Tower of Pisa is used to demonstrate equilibrium.

Model of the Leaning Tower of Pisa with Top Removed
M: S - 012 String with Floating Object
M: S - 013 Differential Hoist
M: S - 014 Magic Yo-Yo

A large yo-yo

Large yo-yo
M: S - 016 Types of Equilibrium

Different types of equilibrium are demonstrated using various pieces of equipment.

A basketball, a round flask with ball bearing (mounted), and a metal cone
M: S - 017 Screwjack

A simple screwjack is used to show mechanical advantage and simple machines

A screw Jack
M: S - 018 Model Sailboat
M: S - 020 Stacking Boards

7 boards are stacked in such a way that one extends out over the lecture bench.

7 boards stacked in an arch formation
M: S - 021 Clown on a Unicycle

A clown rides a unicycle down a piece of wire or string.

Clown on a unicycle
M: S - 022 Large Pulley System

A large pulley system uses a 5-lb barbell to suspend a 25-lb mass.

Close up of the ropes of the pulley - 6 ropes and 1 to pull
M: SHM - 001 Shadows of Simple Harmonic Motion

The shadows of both a mass oscillating vertically on a spring and a mass rotating in a vertical circular path are projected onto the board to show similarities in motion.

Shadow of a ball in circular motion and a cube in vertical oscillation projected onto a whiteboard
M: SHM - 002 Vibrating Hacksaw Blade
M: SHM - 003 Bowling Ball for Simple Harmonic Motion

A bowling ball suspended from the ceiling oscillates back and forth providing an opportunity for calculations.

A bowling ball is suspended from the ceiling
M: SHM - 005 Heavy Physical Pendulum (Irregular Shape)

A large, black, irregularly-shaped pendulum

Irregular pendulum on stand rod
M: SHM - 006 Wilburforce Pendulum
M: SHM - 007 Lissajous Patterns
M: SHM - 008 Large Torsional Pendulum

A large torsional pendulum is rotated to provide oscillation

Large torsional pendulum
M: SHM - 009 Metronome

A metronome is used to demonstrate the effect that length has on period

A wooden metronome
M: SHM - 010 Forced Resonance on a Glider

A glider on an air track is given an external frequency.  As the external frequency is changed, eventually resonance occurs.

Air track mini with glider connected to motor
M: SHM - 011 Resonance Gyroscope

A gyroscope set in motion causes prongs to vibrate.  As the speed changes, the frequency of vibration changes, and different prongs exhibit resonance.

A resonance gyroscope rests on a table
M: SHM - 012 Identical Springs with Identical Masses

2 identical masses are hung from 2 identical springs.  The springs are stretched to different lengths and the masses are released.

Two identical masses hang from identical springs attached to a horizontal rod
M: SHM - 013 SHM on Short Air Track

A glider on a frictionless surface oscillates between 2 springs

A glider is connected to the two ends of the air track by springs
M: SHM - 014 Pendulum - Same Length, Different Mass

Two pendulums of identical length have different masses attached at the end

2 pendulums - same length, different mass

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