Using Sound

Dogs can hear ultrasound frequencies up to about ______ Hz, well above the upper limit for humans.

• 25,000

• 45,000

• 30,000

• 50,000

____________ is the use of reflected sound waves determine distances to locate objects.

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NGSS.MS-PS4-2

Give an example of an animal that uses echolocation to navigate and find food.

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Bats use ultrasound waves with frequencies up to ________ Hz, to move around and hunt.

• 150,000

• 10,000

• 100,000

• 110,000

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NGSS.MS-PS4-1

Dolphins sense reflected sound wave through their ________.

What happens to sound waves as they strike an object?

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NGSS.MS-PS4-2

Dolphins send ultrasound waves with frequencies up to ________ Hz.

• 150,000

• 130,000

• 160,000

• 140,000

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NGSS.MS-PS4-1

What are two forms of ultrasound technology used to observe things that cannot be seen directly?

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

__________ means finding your way around the ocean (or the air)

What do the letters in SONAR stand for?

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