OpenStax Physics (High School)
Lesson Plan
Speed of Sound, Frequency, and Wavelength
Goals / Objectives
Relate the characteristics of waves to the properties of sound waves
Describe sound as a longitudinal wave of compressions and rarefactions that requires a medium
Describe the speed of sound and explain how it changes with the medium and with temperature
Apply the relationship v = fλ to relate the speed, frequency, and wavelength of a sound wave
Explain why frequency stays fixed but wavelength changes when sound crosses into a new medium
Standards
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."
Academic Vocabulary
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Accommodations
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Anticipatory Set / Bell Work
Modeling
Check for Understanding
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Guided Practice
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Independent Practice
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