Wave Motion
G3-11: SHIVE WAVE MACHINE - RESONANCE ABSORPTION
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate resonance absorption of wave energy by a mass-on-spring system.
G3-10: SHIVE WAVE MACHINE - BRANCHING
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate branching and recombining with two wave machines in parallel.
G3-09: SHIVE WAVE MACHINE - FREQUENCY FILTERING
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate frequency filtering through a "filter" consisting of four weighted crossarms and the interference from partial reflections they produce.
G3-08: SHIVE WAVE MACHINE - FABREY-PEROT INTERFEROMETER
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate the mechanical analog of the optical Fabrey-Perot interferometer.
G3-07: SHIVE WAVE MACHINE - TAPERED TRANSFORMER
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Useful for obtaining a reasonably good impedance match between the two large segments of the Shive machine.
G3-05: SHIVE WAVE MACHINE - PARTIAL REFLECTIONS
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Show that a wave will be partially reflected at a point where the impedance changes.
G3-06: SHIVE WAVE MACHINE - IMPEDANCE MATCHING
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Show that no reflection occurs when the impedance of the load (absorber at right) matches the impedance of the wave machine.
G3-04: SHIVE WAVE MACHINE - STANDING WAVES
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate standing waves.
G3-03: SHIVE WAVE MACHINE - REFLECTION OF PULSES
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate reflection of pulses from fixed ends and free ends.
G3-02: SHIVE WAVE MACHINE - SUPERPOSITION OF PULSES
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate constructive and destructive interference using pulses.
G1-83: PENDULUM WAVES - COMMERCIAL VERSION
Category: G1 Simple Harmonic Motion
Purpose:
Create waves in a very dramatic way using a series of carefully adjusted pendula of various lengths.
G1-82: PENDULUM WAVES
Category: G1 Simple Harmonic Motion
Purpose:
Create waves in a very dramatic way using a series of fifteen carefully adjusted independent pendula.
G4-33: GROUP VELOCITY - TRANSPARENCIES
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate the relationship between the wave velocity and the group velocity
G4-32: MOIRE PATTERNS - COLOR
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show color "interference" effects.
G4-31: MOIRE PATTERNS
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show a type of interference pattern.
G4-22: CHLADNI FIGURES - OSCILLATOR DRIVEN
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show two-dimensional standing waves in a metal plate
G4-21: CHLADNI FIGURES - BOWED
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Show two-dimensional standing waves in a metal plate
G4-14: SPOUTING BOWL
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate resonance in a dramatic way
G4-13: DRUM HEAD STANDING WAVES
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate standing waves in a circular membrane.
G4-12: STANDING WAVES ON A SOAP FILM
Category: G4 Mechanical Waves - Two Dimensional
Purpose:
Demonstrate standing waves in a circular membrane.
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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
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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
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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
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H2-42 DOPPLER EFFECT - TUNING FORK ON STRING
Demonstrates Doppler effect
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H2-51 BEATS - AUDIO OSCILLATORS, SPEAKER & OSCILLOSCOPE
Hear audio beats and see their wave forms on an oscilloscope
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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
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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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