Light and Matter

When light rays strike the surface of a concave mirror, they are reflected and _____.

• grow dimmer

• lose energy

• come closer

• spread farther apart

Tags

NGSS.MS-PS4-2

When light rays strike the surface of a convex mirror, they are reflected and _____.

• grow brighter

• gain energy

• come closer together

• spread farther apart

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NGSS.MS-PS4-2

What type of energy can you sense with your eyes?

• thermal energy

• electric energy

• light energy

• sound energy

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

What happens when light waves bounce off the surface of an object?

• absorption

• transmission

• refraction

• reflection

Tags

NGSS.MS-PS4-2

What happens when light energy passes through an object?

• refraction

• reflection

• transmission

• absorption

Tags

NGSS.MS-PS4-2

How does light travel?

• by refracting through space until it is absorbed

• by reflecting through space until it is absorbed

• light does not travel

• in a straight line until it hits an object

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Alex holds a piece of cardboard in front of a bright light and notes that no light passes through it. He concludes that the cardboard is

• transparent

• opaque

• translucent

• transmitted

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NGSS.MS-PS4-2

How does light obey the law of reflection when it shines on a surface such as brushed stainless steel?

• Light bends as it goes through the brushed stainless steel.

• Light reflects off of the brushed stainless steel exactly the same way it reflects off of a mirror.

• Light slows down as it reaches the rough surface.

• Light reflects off the bumpy surface of the brushed stainless steel in different directions.

Tags

NGSS.MS-PS4-2

Which property of light helps you to see your image in a mirror?

• refraction

• absorption

• reflection

• scattering

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NGSS.MS-PS4-2

Tom wants to show his friend his new magical trick He challenged his friend that he can make his pencil appear broken without actually breaking the pencil. To demonstrate this, Tom placed the pencil in a glass of water and told his friend to take a look through the glass and the water from the side. Tom felt disappointed when his friend said it was not a trick and that he knows exactly what happened. Which best described Tom’s “trick”?

• refraction

• transmission

• absorption

• scattering

Tags

NGSS.MS-PS4-2