8.2 Sound Unit Lesson 14 - OpenSciEd

Front

What is sound?

Back

Sound is a type of energy that travels through a medium (like air, water, or solids) as a wave, transferring energy but not matter.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Front

True or False: Sound transfers energy but not matter.

Back

True

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NGSS.MS-PS4-1

Front

What is a longitudinal wave?

Back

A longitudinal wave is a wave in which the particles of the medium move parallel to the direction of the wave's travel.

Front

What is compression in a longitudinal wave?

Back

Compression is the part of a longitudinal wave where the particles of the medium are close together.

Front

What is rarefaction in a longitudinal wave?

Back

Rarefaction is the part of a longitudinal wave where the particles of the medium are spread apart.

Front

What happens to sound when the amplitude increases?

Back

When the amplitude of a wave increases, the sound becomes louder.

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NGSS.MS-PS4-1

Front

What is amplitude?

Back

Amplitude is the maximum distance that the particles of a medium move from their rest position when a wave passes through.

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NGSS.MS-PS4-1

Front

What is frequency?

Back

Frequency is the number of waves that pass a given point in a certain amount of time, usually measured in Hertz (Hz).

Front

What is the relationship between amplitude and frequency?

Back

When you increase the amplitude of a wave, its frequency stays the same.

Tags

NGSS.MS-PS4-1

Front

What is a wave crest?

Back

A wave crest is the highest point of a wave.

Tags

NGSS.MS-PS4-1