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Physics Test

Enter the letter for the matching Answer
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1.
what is dispersion of light?
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2.
what is the full range of frequencies of electromagnetic radiation called
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3.
what is a insulator?
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4.
what is a digital signal?
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5.
what is the unit of electrical energy ?
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6.
what occurs when light wave bends when its goes through another medium?
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7.
why do blue and yellow combine to produce white light?
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8.
what determines the color of an object?
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9.
how do you calculate frequency of an electromagnetic wave?
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10.
what is a analong signal?
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11.
what is a semiconductor?
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12.
how is a standing wave formed?
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13.
what type of curren is produced by a battery?
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14.
how does light behave as a wave?
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15.
how do you measure the amplitude of a transverse wave?
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16.
When a surfer rides an ocean wave on her surfboard, she is actually riding on a what?
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17.
What is the period of a wave?
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18.
what is a conductor?
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19.
what happens if a atom gains or looses and electron
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20.
how does light behave as a particle?
A.
the time it takes for a wave to complete one cycle?
B.
a material that does not conduct charge well- rubber and wood
C.
electromagnetic spectrum.
D.
a material that makes charge easier to flow.- metal/copper
E.
only if half its wavelength or a multiple half fits exactly into the length of a vibrating cord.
F.
a net electric charge.
G.
because the are complementary colors of light?
H.
what is it made of and the color of light that strikes it.
I.
speed/ wavelength. speed = 3.00 x10^8
J.
crest
K.
uses photons- packets of electrons.
L.
a solid that only conducts under certain conditions
M.
encodes information as a string of 1's and 0's
N.
reflected, absorbed or transmitted
O.
from is rest position to a crest or trough.
P.
produced by a changing voltage and current
Q.
an electric
R.
has constructive and destructive interference.
S.
kilowatts
T.
the process of white light separating into color.
Type the Answer that corresponds to the displayed Question.
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21.
What happens to intensity as you move away from a light source?
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22.
what type of wave are sound waves?
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23.
What color has more photons red or blue
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24.
how do bones look on xrays
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25.
which part of the ear amplifies sound?
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26.
a thick, hot, long would produce what
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27.
how does light interact with translucent material
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28.
how does light interact with transparent material
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29.
what is the term that describes when a wave strikes a barrier and bounces back?
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30.
which medium does sound travel the fastest in?

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