Sound vibrations

Why does cupping your hands around your mouth when you shout make the sound travel further?

• The sound spreads out.
• Your voice gets louder.
• You are screaming.
• The sound energy is directed in one direction.

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the movement in sound that allows us to hear

• dancing

• bouncing

• vibration

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All sound _______

• is loud

• vibrates

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When matter moves in a back and forth motion, the movement is known as

• Pitch

• Wave

• Vibration

• String

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Sound does not travel in space because

• Space is too far away.

• There is no matter in space.

• Space is the final frontier

• Space has planets.

Sound is a form of?

• energy

• pitch

• volume

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Sound travels through the air as waves.

• True
• False

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Matter that carries sound waves is called a _________

• low
• high
• medium
• surface

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What is vibration?

• fast movement that moves back and forth
• lion
• cat
• hat

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What medium does sound travel through slowest?

• gas
• solid
• liquid
• trees