Needs New Photo
H3-03: REFLECTION OF PULSES IN TUBE
Category: H3 Standing Sound Waves
Purpose:
Demonstrate the phase of pulses reflected from open ends and closed ends of a tube.
H3-02: STANDING SOUND WAVES - REFLECTION
Category: H3 Standing Sound Waves
Purpose:
Demonstrate the origin of standing waves from one source and its reflection.
H3-01: STANDING SOUND WAVES - TWO SOURCES
Category: H3 Standing Sound Waves
Purpose:
Demonstrate the origin of standing waves from two identical sources.
H2-28: FOURIER SYNTHESIZER - ADDITION OF WAVES
Category: H2 Wave Properties of Sound
Purpose:
Demonstrate addition of two sine waves with variable phase difference.
H2-25: QUINCKE'S INTERFERENCE TUBES
Category: H2 Wave Properties of Sound
Purpose:
Demonstrate interference of sound waves in a perhaps surprising way.
H2-24: AUDIBLE YOUNG'S EXPERIMENT - MIC AND SCOPE
Category: H2 Wave Properties of Sound
Purpose:
Demonstrate interference of sound with two coherent sound sources in a quantitative way.
H2-03: ACOUSTIC RADAR
Category: H2 Wave Properties of Sound
Purpose:
Illustrate how RADAR and SONAR work
H2-01: FOCUSING OF SOUND WITH CONCAVE REFLECTORS
Category: H2 Wave Properties of Sound
Purpose:
Demonstrate how sound waves can be focused by concave reflectors.
G3-52: ROPE WAVE GENERATOR - ROPE TENSION VS WAVELENGTH
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Observe the change in wavelength of a vibrating rope as the tension is varied.
G3-42: TORSIONAL WAVES
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Demonstrate wave phenomena such as traveling waves, standing waves, and reflection of waves.
G3-25: SLINKY ON LECTURE TABLE - IMPEDANCE MISMATCH
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Show partial reflections and dependence of wave speed on density of the medium.
G3-23: TRANSVERSE WAVES ON A LONG SPRING - FREE END
Category: G3 Mechanical Waves - One Dimensional
Purpose:
Show reflections at a free end.
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.
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K4-01: AC/DC GENERATOR
Demonstrate a simple AC/DC generator Read More
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K4-02 MAGNETOELECTRIC GENERATOR WITH LAMP
Demonstrate a small 110VAC magnetoelectric generator Read More
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K4-04: MAGNETOELECTRIC GENERATOR WITH AC INDICATOR BULB
Show explicitly a generator producing AC output Read More
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K4-05: MAGNETOELECTRIC GENERATOR WITH METERS AND LOADS
An AC generator with rectifier, meters and several loads Read More
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K4-06: MAGNETOELECTRIC GENERATOR WITH CAPACITOR
Demonstrate that the generator is producing electrical energy, and that the capacitor stores electrical energy Read More
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K4-07 BICYCLE GENERATOR
Demonstrates a large scale 110 VAC magnetoelectric generator
Read More
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K4-08: MAGNETOELECTRIC GENERATOR WITH INDUCTOR
Demonstrate how a magnetoelectric generator stores energy in an inductor and how that energy is returned to the generator Read More
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K4-09: BICYCLE GENERATOR - LIGHT BULBs VS CFLs
Compare brightness and power requirements of regular tungsten filament light bulbs and compact fluorescent lamps Read More
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K4-21: ST. LOUIS MOTOR
Demonstrate the structure and operation of a simple motor Read More
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K4-22: DC MOTOR
Show how a DC motor works Read More
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K4-23: AC MOTOR - SYNCHRONOUS
Demonstrate the concept of a synchronous motor Read More
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K4-24: AC/DC MOTOR
Demonstrate the construction and the operation of AC and DC motors Read More
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K4-25: DC MOTOR - HOMEMADE
Illustrate possibly the world's simplest motor Read More
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K4-41: MOTOR-GENERATOR PAIR
Demonstrate that a motor and a generator are the same Read More
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K4-51: UNIPOLAR MOTOR
Demonstrate a very simple unipolar motor Read More
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