Download Daily Quizzes for Laser Technology

Daily Quizzes for Laser Technology
Day 1
1.
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Scientists know that light is made up of ___________.
electricity
electromagnetic waves
chemicals
radiation particles
1-3
2.
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Waves are made up of ___________. 1-4
hills and valleys
ripples and particles
crests and troughs
None of these answers
3.
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_________ is the distance between two waves. 1-4
Angle of Incidence
Angle of Reflection
Wavelength
Refraction
4.
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Infrared light can be detected by ___________. 1-6
humans
insects
dogs
None of these answers
5.
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X-ray waves _______ when compared to light waves. 1-5
have lower frequency
are closer together
have more energy
both closer together and have more energy
6.
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_________ are electromagnetic waves. 1-3
Microwaves
Radio signals
TV signals
All of the answers
Day 2
1.
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Lasers are used in ______________.
grocery stores
the military
operating rooms
All of the answers
2-3, 2-4, 2-8
2.
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Dentists use fiber optics to __________.
sterilize dental equipment
clean teeth
remove cavities
All of the answers
3.
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Laser were first created in _______.
1950
1960
1970
1980
4.
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In Tyndall's demonstration, _________ was used to guide light.
an aluminum pipe
an optic fiber
a light bulb
water
2-6
2-2
2-12
Day 3
1. A single optic fiber with the thickness of 15 human hairs can carry as much data as
__________. 3-4
 a copper cable of the same size
 a copper cable as thick as a pencil
 a copper cable as thick as a baseball bat
 a copper cable as thick as a watermelon
2.
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The core of a fiber optic cable can be made from ______. 3-5
glass
copper
plastic
both glass and plastic
3.
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The main purpose of the cladding on a fiber optic cable is to __________. 3-5
keep the signal from escaping
keep the line from bending
keep the fiber center from freezing
All of the answers
4.
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To work well, the fiber optic core must be very _______. 3-7
big
long
straight
clear
5.
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Telephone companies are replacing copper cables with ____________ cables. 3-4
coaxial
lead
fiber-optic
tin
Day 4
1.
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Your laser should always be plugged into a ________.
three pronged, grounded outlet
two pronged outlet
surge protector
None of these answers
4-1
2.
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Lenses are used to direct __________.
laser light
ordinary light
incandescent light
both ordinary and incandescent light
3.
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A lens that curves outward is called a _________ lens.
concave
converse
convex
focused
4.
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A lens that curves inward is called a _______ lens.
concave
converse
convex
focused
4-2
4-3
4-5
5.
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The focal length of a lens is ___________. 4-5
the size of the mold that made the lens
the distance from the light source to the lens
another name for the diameter of the lens
the distance from the lens to the point at which all the rays converge
Day 5
1.
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Lasers emit ___________.
microwaves
radiation
x-rays
None of these answers
1-7
2.
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Lasers are ___________. 1-7
a kind of microwave
made of many waves of color
a kind of light
incoherent light
3.
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Ordinary white light is called ________ light. 1-9
incoherent
coherent
monochromatic
refractive
4.
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Laser light is called ___________ light.
incoherent
coherent
concave
refractive
5.
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Laser light is different from white light because it _______. 1-9, 1-11
is coherent
is monochromatic
does not diverge
All of these answers
6.
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When white light passes through a prism, it will ______. 1-9
come out in a rainbow of color
come out as a single beam of pure color
bend toward the center of the prism
both come out in a rainbow of color and bend toward the center of the prism
1-9
7.
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When laser light passes through a prism, it will ______.
come out in a rainbow of color
bend toward the center of the prism
come out as a single beam of pure color
None of these answers
8. As white light travels, it ___________.
 gets brighter
 gets dimmer
 spreads out
 both gets dimmer and spreads out
9.
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1-9
1-11
Lasers __________.
1-11
spread out and grow dimmer
are made of many different wavelengths
do not spread out and grow dimmer
both spread out and grow dimmer and are made of many different wavelengths
10. Who first demonstrated light piping?
 Albert Einstein
 John Tyndall
 Charles Townes
 Robert Goddard
2-12
11. Total internal reflection is a special condition in which optical rays _______. 2-13
 cannot escape the material in which they are traveling
 spread out and get wider and dimmer as they travel
 split into a rainbow when they pass through a prism
 spread out and get wider and dimmer as they travel and split into a rainbow when they pass
through a prism
12. The focal length of a lens is determined by _________. 4-7
 the price of the lens
 the brightness of the light source
 the curvature of the convex portion of the lens
 both the brightness of the light source and the curvature of the convex portion of the lens
13. A double-convex lens _________. 4-7
 bends light less than a convex lens
 bends light more than a convex lens
 bends light the same as a convex lens
 does not bend light
Day 6
1.
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Mirrors can be used to control and direct beams for _______. 6-1
laser light shows
bar code scanners
drilling and cutting equipment
All of the answers
2.
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For a surface to act like a mirror, it must be ________. 6-2
silver
curved
very smooth
All of the answers
3.
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Incident rays are ___________. 6-4
the optical rays traveling toward a surface
the optical rays that have "bounced" off a surface
rays of light that can only be seen by bees and other insects
None of the answers
Day 7
1.
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___________ differentiates the various kinds of lasers.
Wavelength
Size
Weight
Reflective properties
2.
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________ are used to produce lasers.
Chemicals
Carbon dioxide and argon gas
Semiconductors
All of these answers
3.
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_______ observed the first laser. 7-3
Albert Einstein
Theodore Maiman
Thomas Edison
None of these answers
7-2
7-2
4.
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Who developed the maser?
Albert Einstein
John Tyndall
Charles Townes
Ali Javan
7-3
5.
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________ invented the first continuous laser beam. 7-3
Albert Einstein
John Tyndall
Charles Townes
Ali Javan
Day 8
1. Laser tag is a game in which participants aim __________ at targets worn by their opponents.
8-1
 darts
 pellets
 lasers
 None of these answers (remove the punctuation in ADMIN
2. Planetariums use_________ to display designs on a screen that are synchronized with music.
8-2
 lasers
 planets
 photons
 protons
Day 9
1.
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Light acts like a ____________.
wave
photon
particle
both wave and particle
9-2
2.
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The smallest unit of light is a(n) ___________.
atom
neutron
proton
photon
9-2
3.
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A laser medium is a ____________. 9-2
medium-sized laser
solid, liquid, or gas that is used to generate the laser beam
a laser-directing mirror
the tube in which a laser is generated
Day 10
1.
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Lasers were invented _____________.
for the space program
to help people who have eye problems
for defense
to prove a scientific theory
7-3
2.
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Exciting an atom makes it ________?
release a neutron
release an electron
release photon energy
destroy an atom
3.
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The continuous laser was developed by mixing ________.
helium and neon
nitrogen and helium
neon and oxygen
hydrogen and oxygen
9-2
7-3