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Light
Test Description: Introduction to Light and the EM spectrum
Instructions: Answer all questions to get your test result.
1) Which EM wave can be seen?
A
X-ray waves
B
Radio waves
C
Gamma waves
D
Light waves
2) Which is the fastest traveling wave?
A
Sound
B
Ocean
C
Light
D
Radio
3) What happens to light waves when they enter a different medium?
A
Nothing happens
B
Their size changes
C
Their frequency changes
D
Their speed changes
4) Which of the following involve microwaves?
A
The visible spectrum
B
Cell phones and radar
C
Night goggles
D
Television
5) Which type of mirror is flat?
A
Concave
B
Rounded
C
Plane
D
Convex
6) Which direction does light bounce off a plane mirror?
A
It doesn't bounce off; it is absorbed.
B
one direction only
C
two directions
D
all directions
7) Waves that move perpendicular to the direction of matter are called
A
transverse waves
B
longitudinal waves
C
sound waves
8) The number of waves that pass a point in one second is the
A
speed
B
frequency
C
wavelength
D
amplitude
9) The distance from crest to crest or trough to trough is the
A
frequency
B
amplitude
C
speed
D
wavelength
10) Amplitude is related to
A
the height of a wave
B
the length of a wave
C
the distance of a wave
D
the speed of a wave
11) The distance a wave travels in one second is known as its
A
frequency
B
spectrum
C
speed
D
amplitude
12) Different colors of light that can be seen are known as the
A
primary colors
B
a prism
C
electromagnetic spectrum
D
visible spectrum
13) Light cannot pass through what kind of objects?
A
Translucent
B
Opaque
C
Clear
D
Transparent
14) Waves from the sun are what type of waves?
A
Sound
B
Electromagnetic
C
Mechanical
D
Longitudinal
15) Which EM wave had the greatest amount of energy?
A
gamma
B
x-ray
C
radio
D
ultraviolet
16) What are pigments?
A
primary colors of light
B
clear, transparent materials
C
convex mirrors
D
opaque substances used to color other materials
17) Any surface that reflects light to form an image of an object is what?
A
light
B
prism
C
pigment
D
mirror
18) What refracts light and produces an image?
A
laser
B
mirror
C
lens
D
spectrum
19) What does a prism do to light waves?
A
absorbs them
B
refracts them
C
discolors them
D
reflects them
20) What does the word refract mean?
A
bounce back
B
bend
C
absorb
D
twist
*select an answer for all questions
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