Refraction

The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-

• absorbed
• stopped
• reflected
• refracted

Tags

NGSS.MS-PS4-2

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water
• makes the water in the glass evaporate
• reflects the pencil on the water's surface

Tags

NGSS.MS-PS4-2

What do we call a material that light can travel through?

• air

• water

• medium

• pathway

Tags

NGSS.MS-PS4-2

The speed of light in a vacuum is _______ m/s

• 3x10⁸

• 3x10¹²

• 3x10⁶

• 3x10¹⁰

Tags

NGSS.HS-PS4-1

Which letter refers to the angle of incidence?

• A

• B

• C

• D

Tags

NGSS.HS-PS4-1

Which letter refers to the normal line?

• A

• B

• F

• E

Which letter refers to the more optically dense medium?

• A

• B

• C

• D

Which letter refers to the angle of refraction?

• A

• B

• C

• D

What happens to the speed of light in a more optically dense medium?

• it slows down

• it speeds up

• stays the same because all light travels at the speed of light

Tags

NGSS.HS-PS4-5

Why does light refract when it enters a medium?

• light changes color

• light changes frequency

• light changes speed

• light changes density

Tags

NGSS.MS-PS4-2