Concave Convex Lenses

What type of lens creates the image seen in the eyeglasses?

• convex

• concave

• reflection

• plane

Tags

NGSS.MS-PS4-1

A lens that is thicker in the middle than on the outside is called ___.

• diverging

• concave

• convex

• achromatic

What word means to bend light rays toward each other?

• Converging light

• Diverging light

• Virtual Light

• Real Light

Tags

NGSS.MS-PS4-2

When light waves move from passing through air to passing through a glass lens when happens to them?

• 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 direction

Tags

NGSS.MS-PS4-2

What word means to bend light rays away from each other?

• Converging light

• Diverging light

• Virtual Light

• Real Light

Eyeglasses bend light to help the image form properly on the retina. The bending of light as it passes from one medium to another is called

• diffraction

• interference

• reflection

• refraction

Tags

NGSS.MS-PS4-2

A student is creating a model of a concave lens. The diagram shows her incomplete model. Which action would best complete her model?

• The student should draw the light moving into the lens and then exiting in converging lines.

• The student should draw the rays of light moving into the lens and then exiting at right angles.

• The student should draw the rays of light moving into the lens and then exiting in a straight path.

• The student should draw the light moving into the lens and then exiting in lines that are spreading out.

Tags

NGSS.MS-PS4-2

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

Tags

NGSS.MS-PS4-2

Which model shows what happens when light passes through a convex lens?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

Which of the following describes a possible application of this type of lens?

• Concave lenses can be used in mirrors to make objects appear closer than they truly are.

• Concave lenses can be used in laser pointers to converge the projected light to a single point.

• Concave lenses can be used in microscopes to make small objects appear larger.

• Concave lenses can be used in car headlights to spread the projected light outwards.