Sound Waves
Our Sound Waves unit addresses the topic of the physics of sound. The set of Video Tutorials below lays a solid foundation for understanding their generation by a vibrating objects, their properties and behaviors, and their connection to the operation of musical instruments.

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Sound as a Mechanical Wave
Sound as a Longitudinal and Pressure Wave
Sound Properties: Frequency, Wavelength, and Speed
The Speed of Sound Waves
Sound Intensity and the DeciBel Scale
Calculating Intensities and DeciBel Ratings
Sound Interference and Beats
Sound and the Doppler Shift
The Doppler Equation
Reflection, Refraction, and Diffraction of Sound Waves
Natural Frequency
Standing Wave Patterns
Fundamental Frequency and Harmonics
Resonance
Resonating Strings
Closed-End Air Columns
Open-End Air Columns
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