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WorksheetsFundamentals of Light
Total questions: 53
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
How does light travel?
a)
in longitudinal waves
b)
in transverse waves
c)
in a zig zag line
d)
back and forth
2.
Light waves need matter to travel.
a)
True
b)
False
3.
Why do we see objects as white?
a)
They absorb all light
b)
They reflect all light
c)
They absorb some light and reflect some light
4.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
5.
Which of the following electromagnetic waves is given off as heat?
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
6.
High frequency waves have _________ wavelengths.
a)
varying
b)
long
c)
the same
d)
short
7.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
8.
Select the correct order of waves on the EMS
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
9.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
10.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
11.
What are the 3 primary colors?
a)
red, green, blue
b)
yellow, orange, violet
c)
red, black, green
d)
magenta, cyan, indigo
12.
What happens to blue light when it hits a shirt that appears blue?
a)
The light is reflected.
b)
The light is absorbed.
c)
The light is refracted.
d)
The light is blocked.
13.
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
14.
Which type of electromagnetic waves is used to image bone?
a)
Gamma Rays
b)
UV Rays
c)
X-Rays
d)
B-Rays
15.
Which are the SI unites for frequency?
a)
meters
b)
meters/seconds
c)
Hertz
d)
seconds
16.
Which are the SI unites for speed?
a)
meters
b)
meters/seconds
c)
Hertz
d)
seconds
17.
Which are the SI unites for wavelength?
a)
meters
b)
meters/seconds
c)
Hertz
d)
seconds
18.
Light behaves like a
a)
particle
b)
wave
c)
particle and wave
19.
Cyan light is a mix of
a)
blue and yellow
b)
green and yellow
c)
blue and green
d)
red and blue
20.
Yellow light is a mix of
a)
blue and red
b)
green and magneta
c)
blue and green
d)
red and green
21.
Magenta light is a mix of
a)
blue and red
b)
green and cyan
c)
blue and green
d)
red and green
22.
What type polarization light comes of glare from horizontal surface?
a)
Horizontal
b)
Vertical
c)
None
d)
All
23.
What are types lenses make 3D glasses?
a)
Two Horizontal Polarized
b)
Two Vertical Polarized
c)
One Horizontal Polarized
&
One Vertical Polarized
&
One Vertical Polarized
24.
A double slit investigation is performed to measure the wavelength of blue light. The slits are 0.015mm apart. A screen is placed 0.8m away and the third order bright band is 7.2mm from the central band. What is the wavelength of blue light?
a)
4.50x10-7m
b)
5.40x10-7m
c)
6.70x10-7m
d)
7.600x10-7m
25.
Electromagnetic waves are
a)
are produced by vibrating charges
b)
all travel at the same speed in a vacuum
c)
are electric field lines and magnetic field lines oscillating together.
d)
all options are correct
26.
Red light plus ______light combine to make white light
a)
yellow
b)
cyan
c)
magenta
d)
blue
27.
Blue light plus ______light combine to make white light
a)
yellow
b)
cyan
c)
magenta
d)
Red
28.
Green light light plus ______light combine to make white light
a)
yellow
b)
cyan
c)
magenta
d)
Red
29.
If polarized filters have their axis oriented at 180 degree (parallel) to each other then
a)
They will block half the light
b)
They will block all the light
c)
They will block a quarter of the light
d)
They will block no light
30.
If polarized filters have their axis oriented at 90 degree (perpendicular) to each other then
a)
They will block half the light
b)
They will block all the light
c)
They will block a quarter of the light
d)
They will block no light
31.
Which of the following is the best description of polarization
a)
light waves oriented all in one plane
b)
light waves bending as they pass through small openings
c)
light waves changing speed and wavelength when entering a new medium
d)
light waves changing color due to the motion of the object
32.
Which of the following is the best description of diffraction
a)
light waves oriented all in one plane
b)
light waves bending as they pass through small openings
c)
light waves changing speed and wavelength when entering a new medium
d)
light waves changing color due to the motion of the object
33.
What is the frequency of the light wave traveling through a vacuum if the wavelength is 7.3x10-5m?
a)
4.11x1012 Hz
b)
2.43x1013Hz
c)
400x10-9 Hz
d)
700x10-7 Hz
34.
Which color has the longest wavelength
a)
blue
b)
yellow
c)
green
d)
red
35.
Which color has the shortest wavelength
a)
blue
b)
yellow
c)
green
d)
red
36.
Which of the following is a coherent source of light
a)
a incandescent bulb
b)
a fluorescent bulb
c)
a red laser
d)
a uv lamp
37.
which of the following is not part of the EM spectrum
a)
sound waves
b)
gamma rays
c)
light rays
d)
radio waves
38.
how do radio waves and gamma rays compare in a vacuum
a)
radio waves are faster
b)
gamma rays are faster
c)
they are the same speed
39.
constructive interference occurs when
a)
the crest of one wave meets the crest of another wave
b)
the crest of one wave meets the trough of another wave
c)
Both options create constructive interference
40.
destructive interference occurs when
a)
the crest of one wave meets the crest of another wave
b)
the crest of one wave meets the trough of another wave
c)
Both options create destructive interference
41.
When you increase the distance between the openings with diffraction, then the distance between the maximums will
a)
increase
b)
decrease
c)
stay the same
42.
When light has the same frequency, wavelength, phase and direction it is called
a)
coherent light
b)
polarized
c)
diffracted
d)
refracted
43.
Which of the following is the symbol for the wavelength
a)
d
b)
L
c)
λ
d)
x
44.
Which of the following is the symbol for the distance between the screen and the slits
a)
d
b)
L
c)
λ
d)
x
45.
Symbol for the distance between the two slits
a)
d
b)
L
c)
λ
d)
x
46.
which of the following represents the distance between the central bright band and the first bright band
a)
d
b)
L
c)
λ
d)
x
47.
A light year can be converted into
a)
meters
b)
second
c)
meters/seconds
d)
newtons
48.
For an incandescent light source
a)
light waves travel perpendicular to the direction of travel
b)
light waves vibrate parallel to the direction of travel
c)
Light waves travel perpendicular to the direction of travel and in all directions
d)
Light waves travel parallel to the direction of travel and in all directions
49.
which of the following is the correct sequence from short wavelengths to long wavelengths
a)
gamma , x ray, red, blue
b)
blue, infrared, microwaves, radio
c)
UV, violet, microwaves, infrared
d)
radio, microwaves, infrared, visible
50.
Sound waves (longer wavelengths) diffract _________ than light waves (smaller wavelengths)
a)
the same amount
b)
more often
c)
less often
d)
neither will difract
51.
Select all that are correct for Coherent light have the same (Ex: LASER)
a)
frequency
b)
wavelength
c)
phase
d)
direction
52.
Check all that apply If the distance between the slits in Young's double slit experiment increases (d increases), which of the following statements is true of the interference pattern? (what happens to x)
a)
the distance between bright fringes stays the same
b)
the distance between the bright fringes increases
c)
the distance between the bright fringes decreases
d)
the distance between the dark fringes decreases
53.
Wave fronts will not change when they pass through an opening that is
a)
the same size as the wavelength of the wave
b)
wider when compared to the wavelength of the wave
c)
narrow when compared to the wavelength of the wave
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