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The Nature of Sound Physics Chapter 16A.

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Presentation on theme: "The Nature of Sound Physics Chapter 16A."— Presentation transcript:

1 The Nature of Sound Physics Chapter 16A

2 Sound waves Sound is a compressional (longitudinal) wave
Series of compressions and rarefactions in a medium Produced by something vibrating

3 Speed of Sound Speed of the wave depends on the density of particles in the medium Travels fastest through solid Because the particles are: Travels slowest through gas Does NOT travel in a vacuum Speed of the wave depends on temperature Speed does NOT depend on loudness (amplitude) of the sound YouTube - Sound Waves and their Sources (1933)

4 Sound obeys the wave equation!
V = fλ Example: A sound wave has a frequency of Hz. What is the wavelength of this sound traveling in air at 343 m/s?

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