Chapter 9 Behavior of Waves

If this wave chain represents 1 second, What is the frequency of the waves?

• 1 Hz
• 9 Hz 
• 3 Hz
• 6 Hz 

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NGSS.MS-PS4-1

How many waves are in this wave chain?

• 6
• 3
• 4
• 5

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NGSS.MS-PS4-1

One end of the rope is vibrated to produce a wave with a wavelength of .25 m.  The Frequency of the wave is 3.0 Hz.  What is the speed of the wave?

• 3.00 m/s
• 2.50 m/s
• .75 m/s
• 1.25 m/s

Transverse and longitudinal waves both_____

• Have compression and rarefaction 
• transfer energy through a medium 
• move at right angles to the vibration of the medium 
• are capable of moving the medium over a long distance 

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NGSS.MS-PS4-1

What does the picture represent?

• diffraction 
• reflection 
• Interference 
• refraction 

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NGSS.MS-PS4-2

Sound is which type of wave?

• Longitudinal wave 
• Transverse wave 
• Standing wave
• Surface Wave 

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NGSS.MS-PS4-1

Which wave causes the medium to vibrate only in the direction parallel to the wave's motion?

• S Waves 
• Transverse waves 
• Longitudinal waves 
• Standing waves 

What type of wave is this?

• Surface Wave 
• Standing Wave
• Electromagnetic Wave
• Transverse Wave

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NGSS.HS-PS4-1

A surface sends ripples across the lake water.  These ripples are an example of _____

• Rarefaction 
• Compression 
• Longitudinal Wave 
• Surface Wave

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NGSS.MS-PS4-1

For refraction to occur in a wave, the wave must_____

• Enter a new medium head on
• Enter a new medium at an angle 
• Change the direction within a medium 
• Strike an obstacle larger than the wavelength 

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NGSS.MS-PS4-2