wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

THIN LESNSES

Total questions: 92

Worksheet time: 4hrs 39mins

Name
Class
Date
1.

What type of image is formed?

a)

virtual and inverted

b)

virtual and upright

c)

real and upright

d)

real and inverted

2.

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

3.

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)

A

b)

B

c)

A and B

d)

neither A or B

4.

A ____ lens is sometimes called a converging lens because it_____.

a)

convex; makes parallel light rays curve outward or diverge

b)

concave; makes parallel light rays travel at a faster speed than before they encountered the lens

c)

convex, makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.

d)

concave; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lend known as the focal point.

5.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
6.

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

a)

They slow down and change direction

b)

They speed up and change direction

c)

They maintain the same speed and change direction

d)

They maintain their same speed and direction

7.
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
8.

A thin converging lens is used to produce, on a screen, a focused image of a candle:


The screen and the lens are moved back and forth and various focused images are produced on the screen.

Which statement is always true?

a)

The image is at the principal focus (focal point) of the lens.

b)

The image is bigger than the object.

c)

The image is closer to the lens than the object is.

d)

The image is inverted.

9.

A parallel beam of light falls on a converging lens. Which diagram shows what happens to the beam of light?

a)

A

b)

B

c)

C

d)

D

10.

In the diagram, the distance OP is the focal length of the lens. Through which point will the ray shown pass, after refraction by the lens?

a)

A

b)

B

c)

C

d)

D

11.

An object is placed in front of a converging lens. The lens has a focal length f. The lens produces a real, enlarged image of the object. In which labelled position is the object placed?

a)

A

b)

B

c)

C

d)

D

12.

A student draws a diagram representing three rays of light from point P passing through a converging lens. Each point labelled F is a principal focus of the lens:

Which of the rays has the student drawn correctly?

a)

Ray X and ray Y

b)

ray X and ray Z

c)

ray Y only

d)

ray Z only

13.

The diagram shows a converging lens forming an image of an object:


Which statement about the image is correct?

a)

It is real and can be seen by an eye at X.

b)

It is real and can be seen by an eye at Y.

c)

It is virtual and can be seen by an eye at X.

d)

It is virtual and can be seen by an eye at Y.

14.

A student starts to draw a ray diagram for an object at O, near a thin convex lens, but is not sure

whether the image is formed at X or at F:


The correctly drawn image is

a)

real and formed at F

b)

real and formed at X

c)

virtual and formed at F

d)

virtual and formed at X

15.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
16.

Which letter represents the angle of incidence?

a)

A

b)

B

c)

C

d)

D

17.

What is the angle of reflection?

a)

650

b)

500

c)

250

d)

400

18.

What type of image is formed?

a)

virtual and inverted

b)

virtual and upright

c)

real and upright

d)

real and inverted

19.
What type of lens is your eye?
a)
convex
b)
concave
c)
it is not a lens
20.

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

21.

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)

A

b)

B

c)

A and B

d)

neither A or B

22.

What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common.

a)

They are opaque

b)

They refract light

c)

They reflect light

d)

That are translucent

23.

A ____ lens is sometimes called a converging lens because it_____.

a)

convex; makes parallel light rays curve outward or diverge

b)

concave; makes parallel light rays travel at a faster speed than before they encountered the lens

c)

convex, makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.

d)

concave; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lend known as the focal point.

24.
In the thin lens equation, do represents 
a)
Distance of the object from the lens
b)
Distance of the image from the lens
25.

An object is located 35.0 cm from a convex 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

26.
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
27.
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
28.
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
29.
If the distance of the image from the lens (di) is positive. The image is considered....
a)
Real 
b)
Virtual
30.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
31.
___ is when light travels through a material and bends.
a)
Diffraction
b)
Dispersion
c)
Mirage
d)
Refraction
32.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
33.

An object 8.5 cm high is placed 28 cm from a converging lens. The focal length of the lens is 12 cm. Determine the height of the image.

*Hint: find di first

a)

6.38 cm

b)

8.5 cm

c)

12cm

d)

21 cm

34.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
35.
Is a concave lens thicker or thinner in the middle? 
a)
Thicker 
b)
Thinner 
36.
What does the word "converging" mean?
a)
to separate
b)
to come together
c)
parallel 
d)
perpendicular
37.
A converging lens is also known as a ____ lens.
a)
convex
b)
concave
c)
double
d)
refracted
38.
What does the word "diverging" mean?
a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
39.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
40.
___ is when light travels through a material and bends.
a)
Diffraction
b)
Dispersion
c)
Mirage
d)
Refraction
41.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
42.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
43.

Is a concave lens thicker or thinner in the middle?

a)

Thicker

b)

Thinner

44.
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
45.

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

a)

They slow down and change direction

b)

They speed up and change direction

c)

They maintain the same speed and change direction

d)

They maintain their same speed and direction

46.
This diagram best represents 
a)
reflection
b)
refraction
c)
absorption
d)
diffusion
47.
How does light travel
a)
It curves around corners
b)
Really slow
c)
In a straight line
d)
In circles
48.

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

49.

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)

A

b)

B

c)

A and B

d)

neither A or B

50.
A _______ breaks white light into colors.
a)
prism
b)
visible spectrum
c)
shadow
d)
lens
51.
When all light can pass through an object, that object is:
a)
translucent
b)
transparent
c)
opaque
d)
reflected
52.
Stopping light and holding it in is called:
a)
absorption
b)
reflection
c)
refraction
d)
opaque
53.
White light is made up of:
a)
red, yellow, and blue
b)
no colors
c)
all colors
d)
red, green, and blue
54.
A ___ lens makes objects appear bigger.
a)
concave
b)
convex
c)
prism
d)
flat
55.
A __ lens makes objects appear smaller and further away.
a)
convex
b)
concave
c)
prism
d)
flat
56.
Why does green grass look green?
a)
It reflects all colors except green.
b)
It absorbs all colors except green.
c)
It only absorbs green.
d)
The colors mix to make green.
57.
Light will be reflected in many different directions off of a ___ surface.
a)
rough
b)
smooth
c)
flat
d)
mirrored
58.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
59.
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
60.
Is a convex lens thicker or thinner in the middle?
a)
Thicker 
b)
Thinner 
61.

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

62.

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

a)

TRUE

b)

FALSE

63.

_________ 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

64.

Which one of these is a convex lens?

a)
b)
c)

None of the above

65.

Where are lenses used? (multiple correct)

a)

Telescopes

b)

Tables

c)

Eye-glasses

d)

Binoculars

66.

The above lens is a type of ___.

a)

diverging lens

b)

converging lens

c)

divergent lens

d)

convergent lens

67.

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

a)
b)
c)
d)
68.

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

a)
b)
c)
d)
69.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
70.
What does the word "diverging" mean?
a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
71.
A diverging lens is also known as a ____lens.
a)
refracted
b)
diffracted
c)
convex
d)
concave
72.

What does the word "converging" mean?

a)
to spread apart
b)
to come together
c)
parallel
d)
perpendicular
73.

Is a convex lens thicker or thinner in the middle?

a)

Thicker

b)

Thinner

74.

A diverging lens is also known as a ____lens.

a)

refracted

b)

diffracted

c)

convex

d)

concave

75.

What does the word "diverging" mean?

a)

to spread apart

b)

to come together

c)

parallel

d)

perpendicular

76.

A converging lens is also known as a ____ lens.

a)

convex

b)

concave

c)

double

d)

refracted

77.

What does the word "converging" mean?

a)

to separate

b)

to come together

c)

parallel

d)

perpendicular

78.

This image is.....

a)

inverted and smaller

b)

inverted and larger

c)

not inverted and smaller

d)

not inverted and larger

79.

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

80.

An object is placed 20 cm from a convex lens of focal length 15 cm. What is the image distance and the nature of the image?

a)

60 cm, real image

b)

30 cm, real image

c)

Image not formed

d)

15 cm, virtual image

81.

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

82.

What does a concave and convex lens have in common?

a)

They both diverge parallel rays to a focal point

b)

They both converge parallel rays to a focal point

c)

Both of them are curved outwards

d)

Both of them are curved inwards

83.

What are the characteristics of a concave lens? (multiple correct)

a)

It is a diverging lens

b)

it is a converging lens

c)

It is curved outwards

d)

It is curved inwards

84.

Convex lenses create only ____________ images.

a)

Real and erect

b)

Virtual and inverted

c)

Virtual and erect

d)

Real and inverted

85.

Do you think Quizizz as a good learning tool?

a)

Yes...

b)

No...

c)

Maybe.....

86.

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

a)

TRUE

b)

FALSE

87.

_________ 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

88.

Which one of these is a convex lens?

a)
b)
c)

None of the above

89.

What is reflection?

a)

Splitting of light

b)

Bouncing back of light

c)

Mixing of colors

d)

A and B

90.

What is also known as a diverging lens?

a)

Concave lens

b)

Convex lens

91.

Where are lenses used? (multiple correct)

a)

Telescopes

b)

Tables

c)

Eye-glasses

d)

Binoculars

92.

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

Similar Resources on Wayground

pemanasan global

88 questions

pemanasan global

quiz

Worksheet

•

9th - 12th Grade

Unit 2 Force and Motion

93 questions

Unit 2 Force and Motion

quiz

Worksheet

•

9th - 12th Grade

Ôn tập giữa kì 11 - BT

91 questions

Ôn tập giữa kì 11 - BT

quiz

Worksheet

•

10th Grade

Physics Exam Review

90 questions

Physics Exam Review

quiz

Worksheet

•

9th - 12th Grade

Physical Science Final Review

95 questions

Physical Science Final Review

quiz

Worksheet

•

9th - 12th Grade

SINH HỌC 10 - CUỐI KÌ I (1)

92 questions

SINH HỌC 10 - CUỐI KÌ I (1)

quiz

Worksheet

•

10th Grade

PS PRE-TEST Energy

87 questions

PS PRE-TEST Energy

quiz

Worksheet

•

9th - 12th Grade

Fall Semester Exam Review Physics

94 questions

Fall Semester Exam Review Physics

quiz

Worksheet

•

9th - 12th Grade