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