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Calculating Wave Speed. Wave Speed. v. f. λ. Practice Problem #1. What is the speed of a sound wave that has a wavelength of 2 m and a frequency of 170.5 Hz? 341 m/s. Practice Problem #2.
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Wave Speed v f λ
Practice Problem #1 • What is the speed of a sound wave that has a wavelength of 2 m and a frequency of 170.5 Hz? • 341 m/s
Practice Problem #2 • A wave traveling in water has a frequency of 500 Hz and a wavelength of 3 m. What is the speed of the wave? • 1,500 m/s
Practice Problem #3 • The lowest-pitched sounds humans can hear have a frequency of 20 Hz. What is the wavelength of these sound waves if their wave speed is 340 m/s? • 17 m
Practice Problem #4 • The highest-pitched sound humans can hear have a wavelength of 0.017 m in air. What is the frequency of these sound waves is their wave speed is 340 m/s? • 20,000 Hz
Practice Problem #5 • Calculate the frequency of a water wave that has a wavelength of 0.5 m and a speed of 4 m/s. • 8 Hz
Practice Problem #6 • An FM radio station broadcasts radio waves with a frequency of 100,000,000 Hz. What is the wavelength of these radio waves if they travel at a speed of 300,000 km/s? • 0.003 km