Sound Waves Review

The images show a transverse wave and a longitudnal wave.

Which statement is true?

• Both have wavelengths.

• Neither have wavelengths

• Neither uses energy to move.

• Both can move in only one type of medium.

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This is a wave pattern diagram for 2 transverse waves.

How do the waves compare??

• Wave 1 has a longer wavelength than wave 2.

• Wave 1 has a higher frequency than wave 2.

• Both waves have the same wavelength.

• Both waves have the same frequency.

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The diagram below shows 2 soundwaves as they travel through air.

Which comparison can be made about Wave A and Wave B

• Wave A travels faster than Wave B

• Wave A travels slower than Wave B

• Wave A has a lower frequency than Wave B.

• Wave A has a higher frequency than Wave B

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The diagram shows a sound wave moving through air from a speaker to an ear. What type of wave is sound?

• electromagnetic

• longitudinal

• light

• transverse

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How does sound travel through a solid?

• by vibrating the molecules in the matter

• by moving in a straight line through the object

• by changing its speed as it moves through the object

• by remaining very still while travelling through the matter

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Why is is easier for sound waves to move through solids than liquids?

• Molecules in liquids do not move.

• Molecules are further apart in solids.

• Molecules are closer together in solids.

• Molecules in liquids are packed too closely together.

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Through which type of matter does sound move most quickly?

• gas

• liquid

• plasma

• solid

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Which best relates properties of sound and hearing?

• Waves with higher frequency will be heard as low pitched sounds.

• Waves with loweer frequency will be heard as high pitched sounds.

• Waves with smaller amplitude and shorter wavelength will be heard as low pitched sounds.

• Waves with higher frequency and shorter wavelength will be heard as high pitched sounds.

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A person produces two sound waves with a clarinet, one right after another. Both sound waves have the same pitch, but the second one is louder.

Which of the properties is greater for the second sound wave?

• amplitude

• frequency

• speed

• wavelength

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What happens to the speed of a sound wave as it passes from a solid to a gas?

• It speeds up

• It slows down

• It speeds up, then slows down

• It slows down, then speeds up

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