Sound Vibrations

Frequency in sound waves is best defined as

• the highest sound

• number of vibrations per second

• The lowest sound

• how long the strings are on an instrument

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NGSS.MS-PS4-1

How high or low a sound is the definition of

• sound

• matter

• pitch

• volume

The softness or loudness of a sound is also known as

• pitch

• volume

• high

• low

The warmer an object is, the ____________ sound will travel through it.

• faster

• slower

• same speed

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Which of the following is required for sound?

• chemicals

• vibrations

• water

• instruments

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What happens when a rubber band is stretched tight and plucked with a finger?

• It makes a sound, creating vibration

• It vibrates, creating a sound

• It creates heat, causing vibration.

• It reflects light, causing sound.

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Jaelyn is clapping her hands at a concert. If Jaelyn uses more force to clap her hands, the sound will most likely become

• louder in volume

• softer in volume

• higher in pitch

• lower in pitch

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NGSS.MS-PS4-1

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Dionne and Zoe are partners in science class. They have been asked to design a device that will communicate sound across a distance. Dionne thinks their device would work best if they used some kind of solid object to transfer the sound across a distance. Zoe, on the other hand, thinks their device would work better if it used the air to transfer the sound. Who is correct? Why?

• Zoe because sound vibrations travel best through the particles in air

• Dionne because sound vibrations cannot travel through the particles in air

• Zoe because sound vibrations cannot travel through the particles in solids

• Dionne because sound vibrations travel best through the particles in solids

Tags

NGSS.MS-PS4-2

Chloe is designing a device to communicate across a distance by using sound. She is doing some research before she decides on her design plan. She looks at a magnified diagram of the particles in a solid, liquid, and gas, as shown. Chloe needs her device to communicate sound quickly. Using the diagram, what information will help Chloe create the fastest communication device?

• Chloe needs her device to communicate sound quickly. Using the diagram, what information will help Chloe create the fastest communication device?

• Sound waves always travel at the same speed in a solid and a liquid.

• Sound waves travel the fastest in a gas because the particles are the farthest apart.

• Sound waves travel the fastest in a solid because the particles are the closest together.

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The barn on Maggie's farm has a tin roof. Whenever it rains, it is very loud in the barn. What most likely causes so much noise in the barn when it rains?

• rain rusting the metal roof

• rain vibrating the metal roof

• . lightning shaking the metal roof

• lightning reflecting off the metal roof

Tags

NGSS.MS-PS4-1