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Calculating Wave Speed, Frequency, and Wavelength Formulas, Exercises of Physics

Waves in the ocean are 6 m apart and pass a surfer every 2 s. What is the wave speed. Solving for. Equation. Substitute. Answer w/ units. Solving for.

Typology: Exercises

2021/2022

Uploaded on 09/12/2022

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Solving for Equation
Substitute Answer w/ units
Solving for Equation
Substitute Answer w/ units
Name: _____________________________________________ Block: _______ Date: ___________
Calculating Wave Speed, Frequency, and Wavelength
Formulas: v = * f
Where v stands for __________________________________ and the units are meters per second (m/s).
stands for ________________________________________ and the units are meters (m).
f stands for _________________________________________ and the units are Hertz (Hz).
1. What is the speed (v) of a wave that has a wavelength (λ) of 2 m and a frequency of 6 Hz?
2. Calculate the speed of a wave with a frequency of 2 Hz (2/s), amplitude of 3m, and a wavelength of 10
m.
3. If two wavelengths pass a given point each second, and the distance between wave crests is 3 m, what
is the wave speed?
4. The lowest pitch that the average human can hear has a frequency of 20 Hz. If sound with this
frequency has a wave speed of 340 m/s, what is its wavelength?
5. A bottlenose dolphin can hear sounds with frequencies up to 150,000 Hz. If the speed of sound in sea
water is approximately 1,500 m/s, what is the wavelength?
6. Waves in the ocean are 6 m apart and pass a surfer every 2 s. What is the wave speed.
Solving for Equation
Substitute Answer w/ units
Solving for Equation
Substitute Answer w/ units
Solving for Equation
Substitute Answer w/ units
Solving for Equation
Substitute Answer w/ units
pf2

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Solving for Equation

Substitute Answer w/ units

Solving for Equation

Substitute Answer w/ units

Name: _____________________________________________ Block: _______ Date: ___________

Calculating Wave Speed, Frequency, and Wavelength

Formulas: v =  * f

Where v stands for __________________________________ and the units are meters per second (m/s).

 stands for ________________________________________ and the units are meters (m).

f stands for _________________________________________ and the units are Hertz (Hz).

  1. What is the speed (v) of a wave that has a wavelength (λ) of 2 m and a frequency of 6 Hz?
  2. Calculate the speed of a wave with a frequency of 2 Hz (2/s), amplitude of 3m, and a wavelength of 10 m.
  3. If two wavelengths pass a given point each second, and the distance between wave crests is 3 m, what is the wave speed?
  4. The lowest pitch that the average human can hear has a frequency of 20 Hz. If sound with this frequency has a wave speed of 340 m/s, what is its wavelength?
  5. A bottlenose dolphin can hear sounds with frequencies up to 150,000 Hz. If the speed of sound in sea water is approximately 1,500 m/s, what is the wavelength?
  6. Waves in the ocean are 6 m apart and pass a surfer every 2 s. What is the wave speed.

Solving for Equation

Substitute Answer w/ units

Solving for Equation

Substitute Answer w/ units

Solving for Equation

Substitute Answer w/ units

Solving for Equation

Substitute Answer w/ units

  1. A buoy on a lake bobs up and down. The waves that cross the buoy have a wavelength of 3 m and a frequency of 3 Hz. What is the speed of the waves?
  2. A ship anchored at sea rocked by waves whose crests are 14 m apart. The waves travel at 7 m/s. How often do the wave crests reach the ship?
  3. Why should a wave, such as a light wave, bend when it passes from air into water?

a. The wave does not actually bend, but only appears to bend. b. The light wave interferes with other energy waves in the water. c. Waves are usually reflected by water d. The speed of light is slower in water.

  1. Which of the following is an example of a mechanical wave?

a. A water wave c. A light wave b. A gravitational wave d. An electromagnetic wave.

Examine the following waves to answer questions 11-13.

a.

b.

c.

  1. Which wave has the highest energy? Why?
  2. Which wave as the lowest energy? Why?
  3. Calculate the frequencies of each wave given that each wave segment passed a given point in 2

seconds.

Solving for Equation

Substitute Answer w/ units

Solving for Equation

Substitute Answer w/ units