WorksheetsLasers
Total questions: 10
Worksheet time: 12mins
Name
Class
Date
1.
What does LASER stand for?
a)
Light Amplification by Stimulated Emission of Radiation
b)
Light Applied Scientifically to Super Rangers
c)
Local Access Service & Equipment Records
d)
Light Amplification by Stimulated Energy of Radiation
2.
Which of the following is an advantage of laser?
a)
Low aspect ration
b)
High speed and accuracy
c)
Contact technique
d)
All of the above
3.
which of the following is a property of laser
a)
monochromatic
b)
coherence
c)
high energy
d)
all of the above
4.
What direction does a LASER move in
a)
a straight light
b)
backwards
c)
a wave
d)
none
5.
what is laser made from
a)
photons
b)
energy
c)
light
d)
wind
6.
Which of the following is a property of LASERS?
a)
Coherence
b)
Reflection
c)
Refraction
d)
Deflection
7.
what keeps the photon bouncing back ?
a)
a mirror at the end tube
b)
a plastic curved-in piece at the end of the tube
c)
a mirror at the middle of the tube
d)
a mirror at the rear of the tube
8.
Which of the following indicates the application of laser shown?
a)
CD
b)
Laser eye surgery
c)
Cutting metal
d)
Laser show
9.
LASER travels at speed of
a)
Sound
b)
Cars
c)
Light
d)
Planes
10.
When electrons return to their ground state, the electrons emit _______.
a)
Photons
b)
Sound
c)
LASER
d)
Fusion
100 %
