Calculating Wavelength

A standard tuning fork uses a sound that travels through air at a frequency of 440 Hz. What is the wavelength of the sound wave emitted into the air by the tuning fork at room temperature? (At room temperature (20°C), sound travels at about 343 meters per second)

• 682 kilometers

• 0.78 meters

• 682 meters

• 0.78 centimeters

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NGSS.HS-PS4-1

A long range early warning radar system used for air defense operates at a frequency of 126 MHz (126,000,000 Hz). What is the wavelength of the electrical oscillations in the radar system? v= 300,000,000 m/s

• 2.38 meters

• 238 meters

• 1.26 meters

• 4.7 kiolmeters

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NGSS.HS-PS4-1

Which one of the following is the equation for wavelength?

• v = λ/ f

• f= λ/v

• λ = v / f

• λv=f

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NGSS.HS-PS4-1

How many wavelengths are pictured here from the left to right edge of the screen? (Remember the definition of a wavelength)

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NGSS.HS-PS4-1

Which wave in the diagram has the greatest wavelength?

• 1

• 2

• 3

• 4

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NGSS.HS-PS4-1

Which location represents the wavelength?

• f

• g

• h

• j

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NGSS.HS-PS4-1

Look at number 1 on the diagram. What do you call the length between each wave?​ (a)  

• amplitude

• wave

• pitch

• frequency

• volume

• wavelength

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NGSS.HS-PS4-1

Which letter corresponds to the wavelength of the wave?

• W

• X

• Y

• Z

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NGSS.HS-PS4-1

What is the wavelength of this waveform?

b

10 cm

8 cm

8 m

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NGSS.HS-PS4-1

What is the wavelength of the given wave? Answer in number only

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NGSS.HS-PS4-1