Sound Waves Overview

Sound is produced by -----

• Heat energy

• Low temperatures

• Vibrations

• Friction

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NGSS.MS-PS4-1

True or False: Sound needs a medium.

• True

• False

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NGSS.MS-PS4-2

The measure of the amount of energy in a wave is ----

• Wavelength

• Hertz

• Frequency

• Amplitude

Tags

NGSS.MS-PS4-1

Sound waves generally travel the fastest through ---

• Liquids

• Gases

• Solids

Which graph has the higher amplitude?

• Graph A

• Graph B

Tags

NGSS.MS-PS4-1

Sound waves must travel through ___________________.

• air

• a medium

• an outward area

• a short

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NGSS.MS-PS4-2

One important characteristic of sound waves is that they are ___________________ waves.

• mechanical

• short

• ultraviolet

• primary

Sound waves can NOT travel through

• Air

• Water

• Earth

• space

Tags

NGSS.MS-PS4-2

The sound that we actually hear is the vibration of molecules.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The vibrations in a longitudinal wave are __________ to the direction of energy transfer.

• parallel

• perpendicular

• Up and Down

• Backwards