Chapter 17 Sound

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

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Sound is caused by? 

• force
• vibrations
• instruments

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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What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

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NGSS.MS-PS4-1

Sound is a form of? 

• energy
• pitch
• volume

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Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

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NGSS.MS-PS4-1

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.

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What medium does sound travel through slowest?

• gas
• solid
• liquid
• trees

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

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NGSS.MS-PS4-1

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Bending of waves around an object (such as through a doorway)

• sound
• diffract
• pitch
• volume

Tags

NGSS.MS-PS4-2