12-2 Section Check (BaseQuestions)

__ is the back and forth motion of an object producing sound

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12-2

Sound waves spread out from a vibration in only one direction.

• TRUE

• FLASE

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12-2

Sound waves travel through solids, liquids, and gasses.

• TRUE

• FLASE

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12-2

An __ is a specific reflected sound.

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12-2

How do dolphins use echos?

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12-2

Sounds travel slowest through (a)   and fastest through ​ (b)   .

• air
• steel
• water
• metal
• brass
• glass
• space

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12-2

Sound cannot travel in a vacuum, such as space.

• TRUE

• FALSE

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12-2

Match the following

• amplitude

• The number of vibrations a sound source makes in a certain amount of time.

• Wavelength

• The loudness of a sound

• Frequency

• Is the Distance from one area of crowded particles to the next

• volume

• The amount of energy in a sound wave is related to this

• pitch

• The highness or lowness of a sound

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12-2

Uses sound waves to detect underwater objects.

• Radar

• Lazer

• Quasar

• Sonar

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12-2

What does sonar stand for? ALSO, provide one use for sonar.

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12-2