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Light
Test Description: Light as an energy source and the visible spectrum
Instructions: Answer all questions to get your test result.
1) Large electrical charges of energy the build up in clouds can cause__________.
A
Light
B
lightning
C
Blue light
D
electromagnetic spectrum
2) Air can get very hot up to 20,000 degrees.
A
False
B
True
3) Light travels in _______________.
A
frequency
B
wavelength
C
waves
D
an arc
4) Light is most commonly created by extreme __________.
A
Heat
B
weather
C
Pressure
D
Cold
5) The sun and the wick of a burning candle are examples of objects that are so hot they create _______.
A
a hot-dog
B
a blue color
C
darkness
D
light
6) Light can travel around the world ____ times in one second.
A
6
B
8
C
10
D
7
7) Light is one million times faster than ___________.
A
Radio Waves
B
Sound
C
X-rays
D
purple waves
8) Light is a vital form of energy.
A
False
B
True
9) Solar panels are good for the environment because they generate pollution and are powered by a nonrenewable resource.
A
True
B
False
10) Solar Panels convert light energy into _______ energy
A
Solar
B
Electrical
C
Potential
D
Mechanical
11) Light waves move up and down this type of wave is called a ___________ wave.
A
silly
B
transverse
C
convex
D
bent
12) The bottom of a light wave is called a ________
A
crest
B
wavelength
C
trough
13) The top of a light wave is called a ________
A
crest
B
trough
C
wavelength
14) The length of a light wave is the distance between two _____crests or two ______trhoughs
A
crest, trough
B
trough, wavelenth
C
crest, wave
15) When the wavelength gets shorter the frequency ________.
A
stays the same
B
decreases
C
increases
16) When the wavelength gets longer, the frequency _______
A
stays the same
B
increases
C
decreases
17) Red has the longest wavelength and violent has the shortest.
A
False
B
True
18) _______ is a combination of all of the colors
A
White
B
Blue
C
Black
D
Grey
19) When we see a black shirt it is because it is reflecting all of the colors.
A
False
B
True
20) A banana is absorbing all of the colors except ________.
A
Orange
B
Yellow
C
Blue
*select an answer for all questions
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