Sound

Sound moves in a _________.

• Transverse wave
• Longitudinal wave

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NGSS.4-PS4-1

NGSS.4-PS3-2

How is sound produced?

• By the vibration of particles
• By the transfer of particles 

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Area of a longitudinal wave where particles are CLOSE together.

• Compression
• Rarefaction

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NGSS.MS-PS4-1

Area of a longitudinal wave where particles are APART. 

• Compression
• Rarefaction

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NGSS.4-PS4-1

Which device measures sound waves?

• Oscilloscope
• Stethoscope 
• Radio
• I don't know

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NGSS.4-PS4-1

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The reflection of sound waves off of a hard surface can create ______.

• A wave
• An echo 

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NGSS.4-PS4-1

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Soft surfaces _______ sound waves. 

• Reflect
• Absorb

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CCSS.RI.4.7

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Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

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NGSS.MS-PS4-2

Sound is caused by? 

• force
• vibrations
• instruments

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NGSS.4-PS4-1

NGSS.4-PS3-2

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

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NGSS.4-PS4-1