NGSS.MS-PS4-2

A mechanical wave cannot travel through...

• a vacuum(empty space).
• water.
• air. 
• glass.

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NGSS.MS-PS4-2

If you see an object as orange,

• it is absorbing orange light and reflecting all other colors. 
• it is reflecting all colors. 
• it is absorbing all colors. 
• it is reflecting orange light and absorbing all other colors. 

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NGSS.MS-PS4-2

The matter (solid, liquid, or gas) through which waves can travel

• Medium
• Object
• Transverse Wave
• Wavelength

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NGSS.MS-PS4-2

In General Sound waves travel the slowest in __________

• solid
• liquid
• Gas
• Plasma

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NGSS.MS-PS4-2

How are we able to perceive an object as being the color white?

• All colors of visible light are absorbed by an object and then reflected into our eye.

• All colors of visible light are reflected off an object and then to our eye.

• All colors of visible light are absorbed by an object and no light is being reflected into our eye.

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NGSS.MS-PS4-2

How are we able to perceive an object as being the color white?

• All colors of visible light are absorbed by an object and then reflected into our eye.

• All colors of visible light are reflected off an object and then to our eye.

• All colors of visible light are absorbed by an object and no light is being reflected into our eye.

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NGSS.MS-PS4-2

While Kayden was swimming in the lake during the summer, his mother was standing on shore yelling for him to come and eat lunch. Not wanting to leave the lake, he pretended not to hear her by dunking his head in and out of the water. What happened to the sound waves of his mother's voice when his head was underwater

• The sound waves moved slower in the water and increased in energy, so he could still hear his mother.

• The sound waves moved slower in the water with lower frequency, so he could not hear his mother.

• The sound waves moved faster in the water and decreased in energy, so he could still hear his mother.

• The sound waves moved faster in the water with a higher frequency, so he could still hear his mother.

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NGSS.MS-PS4-2

uneven reflection when a surface is not smooth, which causes the light rays to bounce off at unequal angles.

• reflection

• refraction

• diffusion

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NGSS.MS-PS4-2

When you place things into water they sometimes look bent (see the image below). What is this an example of?

• Refraction

• Diffraction

• Transmission

• Absorption

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NGSS.MS-PS4-2

A plane mirror form an image of an object because it ........ light from the object

• absorbs

• reflects

• passes

• emits

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NGSS.MS-PS4-2