5.4.3 Sound Through Different Media

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

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What medium does sound travel through slowest?

• gas
• solid
• liquid
• trees

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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NGSS.MS-PS4-2

Which object does sound NOT travel through the fastest?

• A chair

• A table

• A football

• milk

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Sound travels fastest through...

• gas
• liquid
• solids/metals
• space

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NGSS.4-PS3-2

Sounds travels slowest through...

• space
• solids/metals
• gas
• liquids

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Why can't we hear sound in space?

• can't take our helmet off to hear
• Space has no mass / no gas/ solids/ liquids
• because it's dark
• Don't know, I've never been to space

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NGSS.4-PS4-1

What happens when we hear an echo?

• We know there is danger
• there must be someone yelling back to us
• Sound is reflected off a surface and repeated back
• sounds waves are traveling really fast

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Matter that carries sound waves is called a _________

• low
• high
• medium
• surface

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NGSS.4-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.