Introduction to Sound

Front

What is the primary reason that all instruments make sound?

Back

Instruments make sound because of vibrations.

Front

What sensation do you experience when you hum and touch your throat?

Back

You feel vibrations.

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Front

How would you describe the motion of vibrating?

Back

Vibrating is when something moves back and forth really fast.

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Front

What can you demonstrate by placing a tuning fork in water?

Back

You can show that a tuning fork is vibrating.

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Front

What happens to a drum when you hit it?

Back

When you hit a drum, it causes the drum to vibrate.

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Front

Define sound in terms of physical phenomena.

Back

Sound is a type of energy made by vibrations that travels through air, water, or solids.

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Front

What is the relationship between vibration and sound production?

Back

Vibration is the source of sound production; when an object vibrates, it creates sound waves.

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NGSS.MS-PS4-1

Front

What are sound waves?

Back

Sound waves are longitudinal waves that are created by vibrating objects and travel through a medium.

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Front

What is the medium through which sound travels?

Back

Sound travels through various media, including air, water, and solids.

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Front

How does the speed of sound vary in different media?

Back

The speed of sound is faster in solids than in liquids, and faster in liquids than in gases.

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