Name___________________________________________________
The Wave Speed Equation
v=λƒ
v = velocity λ = wavelength ƒ = frequency
1. What is the velocity (v) if λ = 8 m and ƒ = 20 Hz?
λ =
ƒ =
v = Answer __________
2. What is the velocity (v) if λ = 6 m and ƒ = 10 Hz?
λ =
ƒ =
v = Answer __________
3. A wave traveling in water has a frequency of 500 Hz and a wavelength of 3.00 meters. What is the speed of the wave?
λ =
ƒ =
v = Answer __________
4. The lowest-pitched sounds humans can hear have a frequency of 20 hz. What is the wavelength of these sound waves if their speed is 340 m/s ?
λ =
ƒ =
v = Answer __________
5. Using the velocity of sound at 343 m/s and given the frequencies of a piano scale, compute the wavelengths of a note that has a frequency of 440hz.
λ =
ƒ =
v = Answer __________
6. The velocity of a wave named Wanda is 200 m/s and it has wavelength of 14 meters. Wanda’s friend Wendy is moving at 100 m/s at the same wavelength. Calculate both Wanda and Wendy’s frequency.
Wanda Wendy
λ = λ =
ƒ = ƒ =
v = v =