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Convex/concave lenses

Total questions: 15

Worksheet time: 16mins

Name
Class
Date
1.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
2.
Which describes a convex lens?
a)
triangular in shape
b)
more transparent in the middle
c)
thicker on the edges than in the middle
d)
thicker in the middle than on the edges
3.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
4.

How does a concave lens differ from a convex lens?

a)

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

b)

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

c)

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

d)

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

5.

Concave lenses are thick in the middle and thin in the edges.

a)

TRUE

b)

FALSE

6.

_________ is known as refraction

a)

The mixing of colors

b)

the travelling of light in a straight line

c)

The change in the path of light

d)

The bouncing back of the light

7.

Which one of these is a convex lens?

a)
b)
c)

None of the above

8.

Where are lenses used? (multiple correct)

a)

Telescopes

b)

Tables

c)

Eye-glasses

d)

Binoculars

9.

The above lens is a type of ___.

a)

diverging lens

b)

converging lens

c)

divergent lens

d)

convergent lens

10.

Which lens represents the path light takes through a concave lens?

a)
b)
c)
d)
11.

Which figure represents the path light takes through a convex lens?

a)
b)
c)
d)
12.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
13.
What does the word "diverging" mean?
a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
14.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
15.

What does the word "converging" mean?

a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular