Waves and Sound

Frequency is defined as...

• Number of waves or cycles generated per second.
• The maximum displacement of a wave from its equilibrium position.
• The time interval between two consecutive waves.
• The distance between two identical positions on two consecutive waves.

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NGSS.MS-PS4-1

A wave machine generated waves with a wavelength of 0.080 m at a constant wave speed of 17 m/s. Calculate the frequency of the waves.

• 212 Hz

• 1.36 Hz

• 0.00470 Hz

• 16.92 Hz

• 1.36

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NGSS.MS-PS4-1

The speed of sound in air is 340 m/s. The frequency of the sound waves generated by my voice is 720 Hz. Calculate the wavelength of sound of my voice.

• 380 m

• 0.472 m

• 2.11 m

• 244,800

• none of these are correct

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NGSS.MS-PS4-1

Which wave has the greatest amplitude?

• A
• B
• C
• D

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NGSS.MS-PS4-1

How loud or soft a sound is, is related to the _____________ of the wave

• amplitude
• frequency
• wave length
• rest position

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NGSS.MS-PS4-1

Which wave has the largest wavelength?

• A
• B
• C
• None (same wavelength)

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NGSS.MS-PS4-1

Sound waves are...

• cool
• not cool
• transverse waves
• longitudinal waves

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NGSS.MS-PS4-2

Waves that have vibrations that move perpendicular to the direction the wave are called:

• Electromagnetic Spectrum

• Transverse Waves

• Medium

• Light Waves

Waves that require a medium are called 

• mechanical waves
• transverse waves
• light waves
• gamma rays

Which type of wave is pictured here?

• Longitudinal
• Transverse
• Light 
• Electromagnetic

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NGSS.MS-PS4-1