Refraction

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

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

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

Tags

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.

Tags

NGSS.MS-PS4-2

What is happening in this picture?

• Reflection

• Refraction

Tags

NGSS.MS-PS4-2

Q1. What is the phenomenon of light bending when it passes through different mediums?

• A) Reflection

• B) Refraction

Tags

NGSS.MS-PS4-2

prism

• reflection

• refraction

• absorption

Tags

NGSS.MS-PS4-2

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

• it is bent towards the normal.

• it always lies along the normal.

• it is unaffected.

• it is bent away from the normal.

Tags

NGSS.MS-PS4-2

How is light affected by an increase in the index of refraction?

• Its frequency increases

• Its frequency decreases

• Its speed increases

• Its speed decreases

Tags

NGSS.HS-PS4-1

Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45

• diamond

• water

• flint glass

• barium glass

Tags

NGSS.MS-PS4-2