lecdem.physics.umd.edu - H2 Wave Properties of Sound

H2 Wave Properties of Sound

This section demonstrates the effects of the wave nature of sound, including interference, beats, resonance, and the Doppler effect.

H2-01: FOCUSING OF SOUND WITH CONCAVE REFLECTORS

Demonstrate how sound waves can be focused by concave reflectors. Read More
H2-02: PARABOLIC MICROPHONE

Show what a parabolic microphone is and to demonstrate its sensitivity individually. Read More
H2-03: ACOUSTIC RADAR

Illustrate how RADAR and SONAR work Read More
H2-11: SOUND LENS

Demonstrate focusing of sound by refraction in a sound lens Read More
H2-21 AUDIBLE YOUNG'S EXPERIMENT - GROUP LISTENING

Demonstrates interference of sound waves with two coherent sources Read More
H2-22: INTERFERENCE - TRANSPARENCIES

An optical analog to the interference pattern from two identical sound sources. Read More
H2-24: AUDIBLE YOUNG'S EXPERIMENT - MIC AND SCOPE

Demonstrate interference of sound with two coherent sound sources in a quantitative way. Read More
H2-25: QUINCKE'S INTERFERENCE TUBES

Demonstrate interference of sound waves in a perhaps surprising way. Read More
H2-26: PHASE REVERSAL BETWEEN STEREO SPEAKERS - MUSIC

Demonstrate interference of sound in a dramatic way. Read More
H2-27: PHASE REVERSAL BETWEEN STEREO SPEAKERS - OSCILLATOR

Dramatically demonstrate interference between two identical sources. Read More
H2-28: FOURIER SYNTHESIZER - ADDITION OF WAVES

Demonstrate addition of two sine waves with variable phase difference. Read More
H2-31: ACOUSTIC COLLIMATOR

Demonstrate the effect of frequency on diffraction of sound. Read More
H2-32: SPEAKER WITH BAFFLE

Demonstrates diffraction and interference of sound waves Read More
H2-33: SPEAKER AND EXPONENTIAL HORN

Demonstrate the effect of an exponential horn enclosure. Read More
H2-41 DOPPLER BALL

Demonstrates Doppler effect Read More
H2-42 DOPPLER EFFECT - TUNING FORK ON STRING

Demonstrates Doppler effect Read More
H2-51 BEATS - AUDIO OSCILLATORS, SPEAKER & OSCILLOSCOPE

Hear audio beats and see their wave forms on an oscilloscope Read More
H2-52: BEATS AND RESONANCE - TUNING BARS

Demonstrate beats, and to demonstrate resonance between two identical tuning bar resonators. Read More
H2-53 BEATS - AUDIO OSCILLATORS AND SPEAKERS

Hear beats Read More
H2-54: BEATS - MOIRE PATTERN MODEL

Model for beats between mistuned audio oscillators. Read More
H2-55: BEATS AND RESONANCE - TUNING BOXES

Illustrate beats and resonance. Read More

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