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PHY1020-Chapter 9 Test

Enter the letter for the matching Answer
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1.
Which of the following has the lowest frequency? ~TV ~AM radio ~Visible light ~Gamma rays
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2.
Bats navigate in caves by using
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3.
The phosphor of a fluorescent lightbulb turns which of these into visble light?
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4.
Because of their warmth, humans primarily emit:
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5.
Pit vipers and mosquitos can sense:
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6.
Infrared radiation can:
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7.
Multispectral refers to:
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8.
The ozone layer is created by and absorbs:
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9.
Which of the following is an advanced methos that uses x-rays?
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10.
The best kind of radiation to purify water is
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11.
Which of the following is a typical energy for an x-ray?
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12.
The clouds in thunderstorms rise until they reach:
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13.
If you double the absolute temperature of an object, the wavelength of emitted light:
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14.
The microwaves in a microwave oven mostly heat:
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15.
Which color star would be the hottest ~Blue ~Red ~Orange ~White
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16.
Radio waves and x-rays have the:
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17.
Each of these make use of infrared radiation except
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18.
The original name for the microwave oven was:
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19.
Which of the following is the best for seeing calcium in bones?
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20.
Which of the statements about the ozone layer is not true?
A.
Same speed.
B.
CAT
C.
x-ray
D.
The ozone layer
E.
Ozone is the most important greenhouse gas
F.
IR radiation
G.
GEts shorter by a factor of 16
H.
50,000 eV
I.
Ultraviolet light
J.
AM Radio
K.
Ultraviolet radiation
L.
Water
M.
UV, IR, and visible
N.
Measurement of wave velocities in the ocean.
O.
Help snakes locate prey
P.
Infrared radiation
Q.
UV
R.
Radar range
S.
Blue
T.
Ultrasound.
Type the Answer that corresponds to the displayed Question.
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21.
Dew forms when the ground cools:
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22.
A tungsten lightbulb has 100 watts printed on it. About how much power is emitted as visible light?
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23.
What is the cause for "windburn"?
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24.
A positron is:
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25.
If you double the absolute temperature, the total radiation:
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26.
Cancer is most likely to be caused by:
Type the Question that corresponds to the displayed Answer.
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27.
~Is responsible for sunburns and windburns ~Is used to kill bacteria in the water of remote villages in India ~Is also called black light
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28.
x-rays, UV, and IR
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29.
Microwaves
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30.
Must reflect infrared.

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