Waves Part Two Unit Test Review

Cheyenne wants to show her class a model that demonstrates sound reflection. Which of the following models best represent what happens when sound waves are reflected?

• She drops a rock into a container of sand.

• She pours water onto a sponge that absorbs it.

• She makes a remote control car curve as it approaches an obstacle.

• She bounces a rubber ball on the surface of a table.

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NGSS.MS-PS4-2

What is the difference between a reflected and a diffracted sound wave?

• A reflected sound wave bounces back to the place of origin. A diffracted sound wave changes direction as it passes through an opening.

• A reflected sound wave is absorbed by the medium. A diffracted sound wave changes direction as it passes through an opening.

• A diffracted sound wave bounces back to the place of origin. A reflected sound wave is absorbed as it passes through an opening.

• A diffracted sound wave bounces back to the place of origin. A reflected sound wave changes direction as it passes through an opening.

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NGSS.MS-PS4-2

Which of the following properties describes the bending of light as it enters a medium?

• reflection

• refraction

• frequency

• wavelength

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NGSS.MS-PS4-2

What is the name given to the substance through which a wave travels?

• frequency

• crest

• state

• medium

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NGSS.MS-PS4-2

Why does an orange look orange?

• It absorbs orange light and reflects other colors.

• It reflects red and yellow light, only.

• It reflects orange light and absorbs other colors.

• It absorbs red and yellow light, only.

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NGSS.4-PS4-2

How does the speed of sound in sea water compare to the speed of sound in air?

• The speed of sound is faster in sea water because the molecules in sea water are closer to each other and more dense.

• The speed of sound is slower in sea water because the molecules in sea water are closer to each other and more dense.

• The speed of sound is faster in sea water because the molecules in sea water are closer to each other and less dense.

• The speed of sound is slower in sea water because the molecules in sea water are closer to each other and less dense.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

What would cause a beam of light to increase in wavelength and bend away from the normal?

• Passing from air into glass

• Passing from glass into air 

• Passing from a round glass into a square glass

• Passing from a water faucet into a bathtub of water

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NGSS.MS-PS4-2

Through which of the following would sound waves travel the fastest?

• a vacuum

• a pool of water

• Earth's atmosphere

• a railroad track

In which of the following substances does a beam of light travel the fastest?

• air

• glass

• plastic

• water

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NGSS.MS-PS4-2

Which of the following is a factor of the environment that determines the speed of a wave?

• source

• period

• medium

• wavelength

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NGSS.MS-PS4-2