Name ____________________________ Date _________________ Block____________ Physics Wave Equation Worksheet Use the equations in the box to the right to solve the following problems. 1. The period of a wave is 5 s. Calculate its frequency. (Answer: 0.2 Hz) Equations f= 1 T f = frequency T = period T= 1 f v = λf v = speed λ = wavelength v= λ T 2. The period of a wave is 4 s. Calculate its frequency. (Answer: 0.25 Hz) 3. One cycle of a wave is 1.3 s long. What is its frequency? (Answer: 0.77 Hz) 4. The frequency of a wave is 7 Hz. Find the period of the wave. (Answer: 0.14 s) 5. The frequency of a wave is 0.4 Hz. Calculate the period. (Answer: 2.5 s) 6. If the wavelength of a wave is 3 m and its frequency is 6 Hz, what is the speed of the wave? (Answer: 18 m/s) 7. An ocean wave is about 15 m long. Its period is 18 s. a. Find the frequency of the wave. (Answer: 0.056 Hz) b. Find the speed of the wave. (Answer: 0.83 m/s) 8. As I was sitting on a dock, I noticed that the wavelength of the waves were about 6 m long. The crest of each wave would pass the front of the dock every 8 s. a. Find the frequency of the wave. (Answer: 0.125 Hz) b. Find the speed of the wave. (Answer: 0.75 m/s) 9. A wave is traveling at the speed of light, 3 x 108 m/s. If it has a frequency of 4 x 1015 Hz, what is its wavelength? (Answer: 7.5 x 10-8 m) 10. What is the only way to change the speed of a wave? 11. If the speed of a wave stays constant, but the wavelength is increased, what happens to the frequency?