Index of Refraction

Based on the image, as light passes from medium 1 to medium 2

• light speeds up and bends towards the normal

• light speeds up and bends away from the normal

• light slows down and bends towards the normal

• light slows down and bends away from the normal

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NGSS.MS-PS4-2

When light passes at an angle to the normal from one medium into another in which its speed is higher

• it is bent toward the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

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NGSS.MS-PS4-2

If all other variables are held constant, what happens to the angle of refraction if the angle of incidence increases?

• the angle of refraction stays the same

• the angle of refraction decreases

• the angle of refraction increases

• cannot be determined from the information provided

Swimming pools and the ocean look shallower than they really are due to:

• reflection 

• dispersion

• refraction

• total internal reflection

Tags

NGSS.MS-PS4-2

What is this image showing?

• Reflection

• Refraction

• The law of reflection

• Concave Mirror

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NGSS.MS-PS4-2

Why is the spectrum of light separated into its components of color when white light is directed to a prism?

• Because light reflects off the prism's surface

• The incident white light refracts and separates into its constituent colors

• The white light is absorbed by the prism, separating its colors

• The light speeds up as it moves from air into the denser plastic material

Tags

NGSS.MS-PS4-2

Glass has a _____________ index of refraction than air.

• Equal

• Greater

• Less

• Impossible to say

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NGSS.MS-PS4-2

Why does the lower part of the child appear so much different in size from the upper part?

• The light rays that travel through water and then into air are refracted.

• The light rays that travel through water and then into air are enlarged.

• The light rays that travel through air and then into water are reflected.

• The light rays that travel through air and then into water are reduced.

Tags

NGSS.MS-PS4-2

Why does the straw appear to be bent?

• light is reflected

• light is absorbed

• light is turned

• light is refracted

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NGSS.MS-PS4-2

According to Willebord Snell, light passing from air to glass will cause the light to

• maintain its original speed 

• accelerate while it is in glass

• increase its speed

• reduce its speed

Tags

NGSS.MS-PS4-2