Needs New Photo
C7-16: HAPPY AND UNHAPPY BALLS
Category: C7 Collisions
Purpose:
Illustrate coefficient of restitution.
C7-04: AIR TRACK - COLLISION VELOCITY MULTIPLIER
Category: C7 Collisions
Purpose:
Illustrate velocity multiplication with a three-to-one mass ratio collision.
C7-03: AIR TRACK - SCATTERING WITHOUT CONTACT
Category: C7 Collisions
Purpose:
Show that elastic scattering can occur between two objects without actual physical contact between the objects.
C7-02: AIR TRACK -INELASTIC COLLISIONS
Category: C7 Collisions
Purpose:
Demonstrate conservation of momentum in elastic collisions.
C7-01: AIR TRACK - ELASTIC COLLISIONS
Category: C7 Collisions
Purpose:
Demonstrate conservation of energy and conservation of momentum in elastic collisions.
C8-34: POWER - INSTRUCTOR DRAGGING CONCRETE BLOCK
Category: C8 Mechanical Energy and Power
Purpose:
Demonstrate power
C8-33: POWER - USING GRAVITY
Category: C8 Mechanical Energy and Power
Purpose:
Demonstrate mechanical power.
C8-32: POWER - CLIMBING LADDER
Category: C8 Mechanical Energy and Power
Purpose:
A simple method for illustrating power and the unit of the horsepower.
C8-23: WORK DONE BY PUSHING ON WALL
Category: C8 Mechanical Energy and Power
Purpose:
Illustrates that the wall and the floor do no work.
C8-13: BUNGEE JUMPER MODEL
Category: C8 Mechanical Energy and Power
Purpose:
Determine the minimum value of the spring constant of a bungee rope to ensure a safe jump.
C8-12: JUMPING MASSES WITH INTERNAL SPRINGS
Category: C8 Mechanical Energy and Power
Purpose:
Demonstrate conversion of internal energy of a spring into kinetic energy and then gravitational potential energy.
C8-05: CONSERVATION OF ENERGY IN VERTICAL PROJECTILE
Category: C8 Mechanical Energy and Power
Purpose:
Show the relation between initial velocity and height of a vertical projectile.
C6-16: SLIDING AND STATIC FRICTION
Category: C6 Friction
Purpose:
Show that the friction force depends linearly on the normal component of the applied force.
C6-15: SOCIAL DESCENDER - FRICTION TOY
Category: C6 Friction
Purpose:
Illustrate frictional forces in a weird way.
C6-12: SKIDDING AUTOMOBILE
Category: C6 Friction
Purpose:
Demonstrate the effect of locked wheels on vehicle stability.
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.
C6-05: AIR TRACK - INCLINED PLANE FRICTION
Category: C6 Friction
Purpose:
Show that the force of friction depends upon the conditions of the surfaces in contact.
C6-04: FRICTION DIRECTION ON INCLINED PLANE
Category: C6 Friction
Purpose:
Determine the direction of the frictional force in a possibly ambiguous situation.
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H2-01: FOCUSING OF SOUND WITH CONCAVE REFLECTORS
Demonstrate how sound waves can be focused by concave reflectors. Read More
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H2-02: PARABOLIC MICROPHONE
Show what a parabolic microphone is and to demonstrate its sensitivity individually. Read More
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H2-03: ACOUSTIC RADAR
Illustrate how RADAR and SONAR work Read More
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H2-11: SOUND LENS
Demonstrate focusing of sound by refraction in a sound lens Read More
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H2-21 AUDIBLE YOUNG'S EXPERIMENT - GROUP LISTENING
Demonstrates interference of sound waves with two coherent sources
Read More
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H2-22: INTERFERENCE - TRANSPARENCIES
An optical analog to the interference pattern from two identical sound sources. Read More
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H2-24: AUDIBLE YOUNG'S EXPERIMENT - MIC AND SCOPE
Demonstrate interference of sound with two coherent sound sources in a quantitative way. Read More
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H2-25: QUINCKE'S INTERFERENCE TUBES
Demonstrate interference of sound waves in a perhaps surprising way. Read More
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H2-26: PHASE REVERSAL BETWEEN STEREO SPEAKERS - MUSIC
Demonstrate interference of sound in a dramatic way. Read More
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H2-27: PHASE REVERSAL BETWEEN STEREO SPEAKERS - OSCILLATOR
Dramatically demonstrate interference between two identical sources. Read More
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H2-28: FOURIER SYNTHESIZER - ADDITION OF WAVES
Demonstrate addition of two sine waves with variable phase difference. Read More
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H2-31: ACOUSTIC COLLIMATOR
Demonstrate the effect of frequency on diffraction of sound. Read More
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H2-32: SPEAKER WITH BAFFLE
Demonstrates diffraction and interference of sound waves
Read More
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H2-33: SPEAKER AND EXPONENTIAL HORN
Demonstrate the effect of an exponential horn enclosure. Read More
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H2-41 DOPPLER BALL
Demonstrates Doppler effect
Read More
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H2-42 DOPPLER EFFECT - TUNING FORK ON STRING
Demonstrates Doppler effect
Read More
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H2-51 BEATS - AUDIO OSCILLATORS, SPEAKER & OSCILLOSCOPE
Hear audio beats and see their wave forms on an oscilloscope
Read More
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H2-52: BEATS AND RESONANCE - TUNING BARS
Demonstrate beats, and to demonstrate resonance between two identical tuning bar resonators. Read More
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H2-53 BEATS - AUDIO OSCILLATORS AND SPEAKERS
Hear beats
Read More
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H2-54: BEATS - MOIRE PATTERN MODEL
Model for beats between mistuned audio oscillators. Read More
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H2-55: BEATS AND RESONANCE - TUNING BOXES
Illustrate beats and resonance. Read More
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