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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
electromagnetic spectrum
B
Light
C
Blue light
D
lightning
2) Air can get very hot up to 20,000 degrees.
A
True
B
False
3) Light travels in _______________.
A
waves
B
wavelength
C
frequency
D
an arc
4) Light is most commonly created by extreme __________.
A
Heat
B
Cold
C
weather
D
Pressure
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
8
B
10
C
7
D
6
7) Light is one million times faster than ___________.
A
Radio Waves
B
purple waves
C
Sound
D
X-rays
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
False
B
True
10) Solar Panels convert light energy into _______ energy
A
Potential
B
Solar
C
Mechanical
D
Electrical
11) Light waves move up and down this type of wave is called a ___________ wave.
A
silly
B
bent
C
transverse
D
convex
12) The bottom of a light wave is called a ________
A
crest
B
trough
C
wavelength
13) The top of a light wave is called a ________
A
trough
B
wavelength
C
crest
14) The length of a light wave is the distance between two _____crests or two ______trhoughs
A
crest, wave
B
crest, trough
C
trough, wavelenth
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
decreases
B
stays the same
C
increases
17) Red has the longest wavelength and violent has the shortest.
A
True
B
False
18) _______ is a combination of all of the colors
A
Black
B
Blue
C
White
D
Grey
19) When we see a black shirt it is because it is reflecting all of the colors.
A
True
B
False
20) A banana is absorbing all of the colors except ________.
A
Blue
B
Orange
C
Yellow
*select an answer for all questions
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