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