How Sound Waves Travel Through Matter

Which of the following do sound waves travel the slowest through?

• cold air

• frozen ice

• liquid water

• hot air

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NGSS.MS-PS4-2

How fast do sound waves travel in space?

• Sound waves travel faster than light waves in space

• Sound waves do not travel through space because there is no matter to travel on.

• Sound waves are transverse waves and travel fast through space

• Sound waves can only travel through space

Which state of matter do sound waves travel the fastest through?

• the vacuum of space

• solid

• gas

• liquid

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NGSS.MS-PS4-2

Petra is measuring sound waves as they travel through different materials. Which of the following will Petra find to be true about sound waves?

• They travel the fastest through solids.

• They travel the fastest in very dense solids

• They travel more slowly in solids than in liquids

• They will speed up as they travel from a solid to the air

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NGSS.MS-PS4-2

What is a wave?

• A disturbance that transfers matter

• A disturbance that transfers energy

• Any type of energy that makes particles move

• Any type of matter that vibrates back and forth

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NGSS.MS-PS4-1

Through which of these media do sound waves travel most slowly?

• iron

• wood

• water

• cold air

The medium through which a mechanical wave passes can be a solid, a liquid, or a gas. Properties of wave might change when it moves from one medium to another. What happens to the speed of a wave when it moves from a gas to a solid.

• it speeds up

• it slows down

• it remains the same

• it speeds up then slows down

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NGSS.MS-PS4-2

If a train was coming, which choice below would describe the sound of the train?

• The train would be heard through the air first.

• The sound of the train would be heard at the same speed through each state of matter

• The sound of the train would be heard only when it was in sight of the station

• The sound of the train would be heard first through the train tracks, because they are a solid

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