WorksheetsLenses
Total questions: 15
Worksheet time: 35mins
Name
Class
Date
1.
What does the word "converging" mean?
a)
to separate
b)
to come together
c)
parallel
d)
perpendicular
2.
A converging lens is also known as a ____ lens.
a)
convex
b)
concave
c)
double
d)
refracted
3.
When an object is placed on the focal point in front of a convex lens, the image produced is ___.
a)
real, reduced, and inverted
b)
real, enlarged, and inverted
c)
real, true, and inverted
d)
There is no image
4.
When an object is placed between the focal point and the convex lens, the image produced is ___.
a)
real, reduced, and inverted
b)
real, enlarged, and inverted
c)
virtual, enlarged, and upright
d)
virtual, reduced, and upright
5.
What does the word "diverging" mean?
a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
6.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
7.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
8.
This image is...
a)
Inverted and smaller
b)
inverted and bigger
c)
not inverted and smaller
d)
not inverted and bigger
9.
A converging lens produces an image twice the size of the original. If the object is placed 0.40 m from the lens, and the image produced is 0.80 m from the lens. What is the focal length of the lens?
a)
0.351 m
b)
0.267 m
c)
0.416 m
d)
0.112 m
10.
A tree 20 m high is located 40 m from the converging lens of focal length 0.08 m.Calculate the distance from the lens to the image.
a)
0.08 m
b)
0.01 m
c)
0.10 m
d)
0.20 m
11.
The di for a virtual image will have a ______ value.
a)
positive
b)
negative
12.
An object is located 35.0 cm from a converging lens. The lens forms a real image at a distance of 15.0 cm. What is the focal length?
a)
0.0953 cm
b)
10.5 cm
c)
26.2 cm
d)
0.0678 cm
13.
A normal human eye has a focal length of about 0.023 m. If you look at the tip of a pencil, 0.553 m from your eye, how far is the image from the lens of your eye?
a)
0.024 m
b)
0.033 m
c)
0.045
d)
0.055
14.
The focal length of the lens in your eye is about 0.015 m. If the object is 1 m from your eye, where is the image produced?
a)
0.0315 m
b)
0.0243 m
c)
0.0152 m
d)
0.0601 m
15.
An object is located 35.0 cm from a diverging lens. The lens forms an image at a distance of 15.0 cm. What is the focal length?
a)
26.25 cm
b)
10.5 cm
c)
-26.25 cm
d)
-10.5 cm
100 %
