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Physics Test

Enter the letter for the matching Answer
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1.
what occurs when light wave bends when its goes through another medium?
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2.
name the electromagnetic spectrum in order of increasing frequencies.
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3.
how does light interact with transparent material
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4.
what is the unit of electrical energy ?
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5.
how is a standing wave formed?
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6.
which medium does sound travel the fastest in?
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7.
what is the unit for electric power
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8.
what are the primary colors of light
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9.
what is maintained across the terminals of a battery
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10.
what is the term that describes when a wave strikes a barrier and bounces back?
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11.
how does light behave as a particle?
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12.
why do blue and yellow combine to produce white light?
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13.
how does a gfcl work
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14.
how do you calculate frequency of an electromagnetic wave?
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15.
Through what mediums can mechanical waves travel?
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16.
what is a cathodes-ray tube
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17.
what would produce the lowest resistance
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18.
what is a semiconductor?
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19.
what is a insulator?
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20.
what is the difference between a parallel and series circuit?
A.
a voltage drop.
B.
speed/ wavelength. speed = 3.00 x10^8
C.
a thick, cool and short wire
D.
green, red and blue- create all possible colors
E.
kilowatts
F.
parallel; can still operate if one element stops series: cannot function if one element stops
G.
solids.
H.
uses photons- packets of electrons.
I.
radio waves, microwaves, infrared radiation, visible light, uv ray, x rays gamma rays.
J.
reflected, absorbed or transmitted
K.
watts
L.
a solid that only conducts under certain conditions
M.
because the are complementary colors of light?
N.
only if half its wavelength or a multiple half fits exactly into the length of a vibrating cord.
O.
solids, liquids and gases.
P.
it is transmitted
Q.
reflection.
R.
it controls the strength and position of the beams to produce images.
S.
it monitors currents flowing and from an outer appliance
T.
a material that does not conduct charge well- rubber and wood
Type the Answer that corresponds to the displayed Question.
incorrect
21.
When a surfer rides an ocean wave on her surfboard, she is actually riding on a what?
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22.
how does light interact with translucent material
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23.
What happens to intensity as you move away from a light source?
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24.
a thick, hot, long would produce what
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25.
cell phones use what type of wave?
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26.
What color has more photons red or blue
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27.
how do bones look on xrays
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28.
what type of wave are sound waves?
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29.
which part of the ear amplifies sound?
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30.
what type of curren is produced by a battery?

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