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Speed of Sound, Frequency, and Wavelength

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14.1

"Sound is a disturbance of matter that is transmitted from its source outward in the form of longitudinal waves." "The relationship of the speed of sound *v*, its frequency *f*, and its wavelength $\lambda$ is given by $v = f\lambda$, which is the same relationship given for all waves." "In a given medium at a specific temperature (or density), the speed of sound *v* is the same for all frequencies and wavelengths."

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"Sound is a disturbance of matter that is transmitted from its source outward in the form of longitudinal waves."
"The relationship of the speed of sound v, its frequency f, and its wavelength $\lambda$ is given by $v = f\lambda$, which is the same relationship given for all waves."
"In a given medium at a specific temperature (or density), the speed of sound v is the same for all frequencies and wavelengths."

What you'll learn

  1. Relate the characteristics of waves to the properties of sound waves
  2. Describe sound as a longitudinal wave of compressions and rarefactions that requires a medium
  3. Describe the speed of sound and explain how it changes with the medium and with temperature
  4. Apply the relationship v = fλ to relate the speed, frequency, and wavelength of a sound wave
  5. Explain why frequency stays fixed but wavelength changes when sound crosses into a new medium

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