Physics Demonstrations in Sound & Waves is a three-part video program which presents a full range of demonstrations in the areas of sound, vibrations, and wave behavior. The program was developed in an effort to give physics teachers a comprehensive collection of video demonstrations, supplementing the instructor’s live classroom demonstrations. Three-dimensional computer animation is used to augment many of the demonstrations, providing a graphical representation of the physical behavior.
Program Format
Individual demonstrations are 3 to 4 minutes in length and can be quickly accessed using the program's on-screen indexing system. The indexing system allows the teacher to select a particular demonstration and show it at the appropriate time during a unit on sound & waves. The accompanying teacher’s guide gives additional data, information, and suggestions on using the demonstrations to promote further classroom discussion.
Demonstration Selection and Filming Techniques
The selection of demonstrations includes those which are difficult to perform in the classroom and those requiring apparatus not readily accessible to many physics teachers. Detailed observation of the demonstrations is accomplished through use of a filming approach which focuses solely on the apparatus, allowing the teacher to utilize the program in a way which is consistent with his or her personal instructional approach. The voice over narration eliminates the on-screen presenter and allows attention to be directed to the physical behavior being studied.
Single DVD: $78.00
Complete Three-Part Set: $210.00
All DVD orders are subject to our No Risk Purchase Policy allowing materials to be examined for 30 days after purchase. If the DVDs do not meet your needs, simply return them for a full refund.
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Physics Demonstrations in
Sound & Waves: Part I
Mechanical Resonance:
Forced Vibrations with Single and Coupled OscillatorsVelocity; Wavelength & Frequency; Reflected Waves:
Transverse Waves on a Coil SpringChange in Medium; Interference:
Transverse Waves on a Coil SpringStanding Waves:
Vibrational Modes on a StringLongitudinal Waves:
Propagation; Interference of Longitudinal WavesLongitudinal Standing Waves:
Stroboscopic Analysis of Standing Wave BehaviorWaves in Two-Dimensions:
Reflection and Refraction of Waves in a Ripple TankWaves in Two-Dimensions:
Interference and Diffraction of Waves in a Ripple Tank
Length: 30 Minutes
DVD: $78.00
(Teacher’s Guide Included)
Physics Demonstrations in
Sound & Waves: Part II
Nature of Sound Waves:
Sources and Propagation of SoundPropagation of Sound:
Direct Measurement of the Speed of Sound in Air and MetalTransmission of Sound through a Medium:
Attenuation of Sound in a VacuumRefraction of Sound:
Carbon Dioxide Sound LensInterference of Sound:
Sound Divided into Two Paths of Differing LengthInterference of Sound:
Beat PhenomenaDiffraction of Sound:
Bending of Sound by an ObstacleDoppler Effect:
Frequency Shift of Moving Sound Source
Length: 30 Minutes
DVD: $78.00
(Teacher’s Guide Included)
Physics Demonstrations in
Sound & Waves: Part III
Standing Sound Waves:
Resonating Air Column with Cork DustStanding Sound Waves:
Resonance with Illuminating Gas in a Flame TubeStanding Sound Waves in Two-Dimensions:
Illuminating Gas in a Resonating CavityResonance / Real-Time Strobe Holography:
Resonant Modes of a Vibrating BellVibrations in a Two-Dimensional Surface:
Chladni PlateSuperposition Principle:
Fourier Analysis & Synthesis of Complex Musical ToneQuality of Sound / Harmonics:
String Vibrations on a GuitarFrequency Spectrum of Sound:
Audible and Ultrasonic Waves
Length: 30 Minutes
DVD: $78.00
(Teacher’s Guide Included)
