science

Ultra sonic waves are below the human hearing range.

• False

• True

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Infra sonic waves are below human hearing range.

• False

• True

Ultra sonic waves are above the human hearing range.

• True

• False

Infra sonic waves are above the human hearing range.

• True

• False

what is an echo

• a reflected sound wave

• a refecelted sound wave

• a water wave

• oogie boogie

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NGSS.MS-PS4-2

What are the two types of sound waves

what is the doppler effect

• The changing pitch of an ice cream truck siren as it moves by you is an example

• ur mom

• when i scream

• by the Doppler and goerge all go home the noise is loud and quiet and slows down

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NGSS.HS-PS4-1

NGSS.HS-PS4-5