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 =