Font size
S
M
L
XL
WorksheetsOptics
Total questions: 100
Worksheet time: 2hrs 43mins
Name
Class
Date
1.
A convex lens produces
a)
a virtual upright image.
b)
a virtual inverted image.
c)
a real upright image.
d)
an real inverted image.
2.
A plane mirror produces
a)
a virtual image at the same distance from the surface of the mirror.
b)
a virtual image at half the distance from the surface of the mirror.
c)
a real image at the same distance from the surface of the mirror.
d)
an real image at half the distance from the surface of the mirror. .
3.
The image seen is an example of
a)
reflection
b)
refraction
c)
diffraction
d)
incidence
4.
Light passing through a convex lens demonstrates _____.
a)
homeostasis
b)
refraction
c)
diffraction
d)
polarization
5.
Light is considered to be
a)
electromagnetic waves
b)
particles
c)
transverse waves
d)
all of the above
6.
Which is the angle of incident?
a)
Angle 1
b)
Angle 2
7.
Speed of light in a vacuum is
a)
represented by the symbol "c"
b)
3.00 X108 m/s
c)
both answers are correct
8.
The ocean is blue because it is reflecting
a)
all colors of light except blue
b)
blue light
c)
yellow light
d)
no colors of light.
9.
Which electromagnetic wave carries the most energy?
a)
gamma waves
b)
microwaves
c)
radio waves
d)
light waves
10.
The image appears when
a)
all 3 rays cross
b)
at point F behind the lens
c)
at point 2F behind the lens
11.
When all 3 primary light colors are mixed which color is produced?
a)
black
b)
magenta
c)
white
d)
cyan
12.
We see objects because light is refracted from them?
a)
True
b)
False
13.
The color of light is determined by _______ of the light waves?
a)
the medium
b)
the frequency
c)
the amplitude
d)
the speed
14.
A concave lens converges light rays to form real images?
a)
True
b)
False
15.
Compared to a photon of green light, a photon of red light has a...
a)
larger amplitude
b)
higher frequency
c)
lower energy
d)
shorter wavelength
16.
Unlike mechanical waves, EM waves can travel through
a)
a vacuum
b)
water
c)
the ground
d)
air
17.
What happens when light hits an object you can see?
a)
The light turns corners.
b)
The light curves around the object.
c)
The object reflects the light.
d)
The light and the object do not form a shadow.
18.
Through what kind of matter does light move fastest?
a)
liquids
b)
air
c)
matter that is lighter in color
d)
matter that is in larger objects
19.
The intensity of light is related to its brightness.
a)
True
b)
False
20.
How does light travel?
a)
in all directions
b)
in transverse waves
c)
in a zig zag line
d)
back and forth
21.
What form of energy travels faster? Light or Sound?
a)
light
b)
sound
22.
Light waves need matter to travel.
a)
True
b)
False
23.
How does light travel?
a)
in a wavy path
b)
in a straight path
c)
in a zig zag path
24.
Which of the following is an example of an electromagnetic wave?
a)
a radio wave
b)
a water wave
c)
the oscillation of a spring
d)
the vibration of a violin string
25.
Which of the following statements best explains why lightning is seen before thunder is heard?
a)
Electromagnetic waves travel faster than mechanical
waves in air.
waves in air.
b)
Electromagnetic waves have a higher frequency
than mechanical waves.
than mechanical waves.
c)
Electromagnetic waves experience less interference
than mechanical waves.
than mechanical waves.
d)
Electromagnetic waves form faster than mechanical
waves during a thunderstorm.
waves during a thunderstorm.
26.
The bouncing off of light rays from the surface of an object such as a mirror or other shiny surface.
a)
mirror
b)
laser
c)
reflection
d)
refraction
27.
A solid glass or plastic object that light can pass through that refracts light and splits it into the colors of the rainbow.
a)
kaleidoscope
b)
prism
c)
telescope
d)
lens
28.
A real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
29.
Mechanical waves cannot be transmitted through a vacuum. Therefore, which of the following are NOT mechanical waves?
a)
Water waves
b)
Seismic waves
c)
Sound waves
d)
Light waves
30.
Which of the following items would work well in space?
a)
A. flashlight
b)
B. radio
c)
C. guitar
d)
D. drum set
31.
Gamma rays have the shortest wavelength, and therefore the ____ frequency.
a)
lowest
b)
highest
32.
The law of reflection says that the angle of incidence is always ______ the angle of reflection
a)
greater than
b)
less than
c)
equal to
33.
The number of waves produced in a given amount of time
a)
A. amplitude
b)
B. wave speed
c)
C. frequency
d)
D. wavelength
34.
Which of the following waves has the most energy
a)
ultraviolet
b)
visible light
c)
infrared
d)
microwave
35.
An object appears red because it
a)
reflects light waves of all colors
b)
reflects light waves of red
c)
absorbs light waves of red
d)
transmits light waves of all colors
36.
A light year is a measure of
a)
time
b)
distance
c)
speed
d)
wavelength
37.
Primary colors of light can combine to make
a)
black light
b)
white light
c)
primary pigments
d)
ultraviolet light
38.
Which electromagnetic wave carries the most energy?
a)
gamma waves
b)
microwaves
c)
radio waves
d)
light waves
39.
What are the three primary colours of light?
a)
Red,Yellow,Blue
b)
Red,Green,Yellow
c)
Red,Green,Blue
d)
Yellow,Blue,Green
40.
What does polarising do?
a)
Blocks light
b)
Causes light to travel in only one plane
c)
Reduces the amount of light
d)
Looks cool
41.
Which is true of a green grape?
a)
It absorbs green light.
b)
It absorbs white light.
c)
It reflects green light.
d)
It reflects white light.
42.
What is the frequency of red light that has a wavelength of 702 x 10-9 m?
a)
4.27 x 1014
b)
2.34 X 10-15
c)
4.27 x 10-4
43.
Why is light refracted?
a)
Light speeds up
b)
Light slows down
c)
Light speed stays the same
d)
Light can either slow down or speed up
44.
When red light is compared with violet light,
a)
both have the same frequency.
b)
both have the same wavelength.
c)
both travel at the same speed.
d)
red light travels faster than violet light.
45.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
46.
The Law of Reflection:
The angle of incidence is _________ the angle of reflection
The angle of incidence is _________ the angle of reflection
a)
bigger than
b)
the same as
c)
smaller than
47.
A mirror with a surface that curves inward like the inside of a bowl
a)
concave mirror
b)
convex mirror
c)
plane mirror
d)
flat mirror
48.
Convex mirrors produce
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
49.
Which one of the following types of electromagnetic wave travels through space the fastest?
a)
radio waves
b)
infrared waves
c)
microwaves
d)
They all travel through space at the same speed.
50.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
51.
The following is a picture of what type of mirror?
a)
Convex Mirror
b)
Concave Mirror
c)
Plane Mirror
d)
Flat Mirror
52.
Does the frog reflect or absorb green?
a)
Reflect
b)
Absorb
53.
Does the scarf reflect or absorb yellow?
a)
Reflect
b)
Absorb
54.
What does REFRACTION mean?
a)
the bending of light
b)
the "soaking up" of light
c)
bouncing off of light on an object
d)
something that totally blocks light
55.
What does ABSORPTION mean?
a)
the bending of light
b)
the "soaking up" of light
c)
something you can see clearly through
d)
something you can see through; but not clearly
56.
What does REFLECTION mean?
a)
something you can see through; but not clearly
b)
the bending of light
c)
something that totally blocks light
d)
bouncing off of light on an object
57.
What do the letters ROY G BIV represent?
a)
Radio, Opaque, Yarn, Gray, Bird, Ivy, Very
b)
Red, Orange, Yellow, Green, Blue, Indigo, Violet
58.
Which travels faster?
a)
Light
b)
Sound
59.
True or False:
Convex lenses are thinner in the middle and thicker on the edges.
Convex lenses are thinner in the middle and thicker on the edges.
a)
True
b)
False
60.
True or False:
Concave lenses are thicker in the middle and thicker on the edges.
Concave lenses are thicker in the middle and thicker on the edges.
a)
True
b)
False
61.
True or False:
Refraction is the bending of light.
Refraction is the bending of light.
a)
True
b)
False
62.
True or False:
A prism works by bending white light into the colors of the rainbow.
A prism works by bending white light into the colors of the rainbow.
a)
True
b)
False
63.
True or False:
We see colors because those colors are reflected back to our eyes.
We see colors because those colors are reflected back to our eyes.
a)
True
b)
False
64.
Which picture represents what happens when light travels through a CONVEX lens?
a)
A- left picture
b)
B - Right picture
65.
What is found at the end of a rainbow..?
a)
a zebra
b)
a pot of gold
c)
chocolate
66.
All of the following are sources of light except ______________
a)
the sun
b)
a light bulb
c)
fire
d)
the moon
67.
Light that bounces back has been _______________
a)
transferred
b)
heated up
c)
absorbed
d)
reflected
68.
Light that bends has been ____________________
a)
teleported
b)
reflected
c)
charged
d)
refracted
69.
Light can travel through empty space.
a)
True
b)
False
70.
Light travels in ___________________
a)
waves
b)
sound
c)
packs
d)
thunder
71.
What do water droplets in a rainbow act like?
a)
prisms
b)
flashlights
c)
reflectors
d)
lasers
72.
Which of the following is NOT an electromagnetic wave?
a)
ultraviolet
b)
infrared
c)
radio waves
d)
sound waves
73.
The wavelength of an electromagnetic wave is 600nm. What is its frequency?
a)
200 x 10^-12 Hz
b)
300 x 10^-12 Hz
c)
400 x 10^-12 Hz
d)
500 x 10^-12 Hz
74.
A lens that is thicker in the center and thinner at the edges and bends light inwards is a ____________________
a)
concave lens
b)
convex lens
75.
Why do we see objects as black?
a)
They absorb all the light
b)
They reflect all the light
c)
They absorb some light and reflect
76.
Convex Mirrors produce...
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
77.
An incident ray that is parallel to the principal axis...
a)
will reflect parallel to the principal axis
b)
will refract through the focal point
c)
will reflect through the center of curvature
d)
will continue along the same path through the lens
78.
Concave mirrors can create virtual and real images.
a)
True
b)
False
79.
Convex mirrors can create real images.
a)
True
b)
False
80.
Why does a ruler with one end in the air and one end under water appear bent?
a)
Light moves through air faster than it moves through water.
b)
The light is reflected from the ruler moves in a curved path.
c)
Light moves through water at the same speed as it moves through air.
d)
Light in the air is brighter than light in the water.
81.
Why does light bend when it moves from one material to another?
a)
because it travels slow
b)
because it travels fast
c)
because it changes speed and bends
d)
light does not bend
82.
What does it mean to refract?
a)
bounce off
b)
to bend
c)
curve outward
d)
reflect
83.
What property of light waves can be observed as light waves pass from one medium to another and change speed?
a)
Diffraction
b)
Refraction
c)
Reflection
d)
Separation
84.
Convex lenses can produce...
a)
Only real images
b)
Only virtual images
c)
Both real and virtual images
d)
no images form
85.
An object of height 4 cm is placed 10 cm away from a concave lens of focal length 6 cm as shown below.Image is
a)
virtual.inverted
b)
virtual,upright
c)
real,inverted
d)
real,upright
86.
The fact the two angles are the same is an example of....
a)
Refraction
b)
Angle of Incidence
c)
Law of reflection
d)
Magnification
87.
This shows the phenomenon known as....
a)
reflection
b)
refraction
c)
mirrors
d)
focal point
88.
Light has the highest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
89.
Light has the lowest velocity in which medium?
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
a)
diamond
b)
water
c)
flint glass
d)
barium glass
90.
The top of a spoon acts as a __________ mirror; the bottom of a spoon acts as a __________ mirror
a)
concave ; convex
b)
convex ; concave
c)
both sides are concave
d)
both sides are convex
91.
A concave lens...
a)
Bends light rays towards each other and creates only real images
b)
Bends light rays towards each other and creates only virtual images
c)
Bends light rays away from each other and creates only virtual images
d)
Bends light rays away from each other and creates only real images
92.
A convex lens...
a)
Bends light rays towards each other and can create real images
b)
Bends light rays towards each other and creates only virtual images
c)
Bends light rays away from each other and creates only virtual images
d)
Bends light rays away from each other and creates only real images
93.
__________ objects reflect all colors; __________ object absorb all colors
a)
white ; black
b)
black ; white
c)
red ; violet
d)
violet ; red
94.
A red banner will reflect ________ and will ________ all other colors of light
a)
only red light ; absorb
b)
all colors of light ; absorb
c)
all colors but red ; transmit
d)
only red light ; transmit
95.
Converging mirrors make
a)
only real images
b)
only virtual images
c)
both real and virtual images
96.
Diverging mirrors make
a)
only real images
b)
only virtual images
c)
both real and virtual images
97.
Concave mirrors are
a)
diverging
b)
converging
98.
Concave lenses are
a)
diverging
b)
converging
99.
Convex lenses are
a)
diverging
b)
converging
100.
Convex mirrors are
a)
diverging
b)
converging
Reset
