Lenses

___ is when light travels through one medium to another and bends.

• Diffraction
• Dispersion
• Mirage
• Refraction

Tags

NGSS.MS-PS4-2

Which type of lens focuses light

• double concave

• convex

• concave

• plane

Tags

NGSS.HS-PS4-5

Which describes a convex lens?

• thinner in the middle and thicker on the edges

• flat on both sides

• thicker on the edges than in the middle
• thicker in the middle than on the edges

Is a concave lens thicker or thinner in the middle? 

• Thicker 
• Thinner 

When light waves pass from air into a glass lens, what happens?

• They slow down and change direction

• They speed up and change direction

• They maintain the same speed and change direction

• They maintain their same speed and same direction

Tags

NGSS.MS-PS4-2

Which type of lens is also known as a converging lens?

• double concave

• convex

• concave

• plane

A diverging lens is also known as a ____lens.

• double convex

• plane

• convex
• concave

What type of lens is shown?

• concave

• convex

• plane

• mirror

How does a concave lens differ from a convex lens?

• A convex lens is another way to describe a plane mirror; a concave lens is curved

• A concave lens is curved inward on both sides; a convex lens is on only one side

• A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

• A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

A concave lens has an inward curved shape. It refracts light outward from the lens. They light rays spread apart as they exit the lens. Which represents a concave lens?

• A

• B

• A and B

• neither A or B