Mirrors and Lenses

Question 1

Point where the light comes together or

Point where the light seems to come from

Answer 1

Focal Point

Question 2

The distance from the center of the pyramids to the focal point

Answer 2

Focal Length

Question 3

The human eye is what type of lens?

Answer 3

Converging Lens

Question 4

A Convex lens is also called a __________________

Answer 4

Converging Lens

Question 5

A Diverging Lens is also called a _____________.

Answer 5

Concave Lens

Question 6

Formula for Focal Length

Answer 6

1/f= 1/do + 1/di
f is the focal length.
d sub o is the distance of the object relative to the lens.
d sub i is the distance of the image relative to the lens.

Question 7

A lens that gives a real image if the object is outside the focal point

Answer 7

Converging

Question 8

A lens that gives a virtual image if object is inside the focal point and always larger

Answer 8

Converging

Question 9

Lens that can ONLY produce virtual images which are always smaller

Answer 9

Diverging

Question 10

When you hold a magnifying glass close to an object, you are ______________the focal point and the image is __________.

Answer 10

Inside; Big

Question 11

A magnifying glass is an example of what type of lens?

Answer 11

Converging

Question 12

T/F: A diverging lens will make an image appear smaller.

Answer 12

True.