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Physics U4 & HW Test

Enter the letter for the matching Answer
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1.
When one uses the sine wave as a model
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2.
Where is peak kVp represented on the sine wave?
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3.
Electromagetic spectrum from longest wavelength: lowest frequency to shortest wavelength: Highest frequency
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4.
In the normal representation of an x-ray
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5.
4 Properties of a Photon:
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6.
Light has a constant velocity of c=3x108 m/s Therefore
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7.
When x-rays are described it can be said that
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8.
The energy of an x-ray
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9.
The inverse square relationship applies to which of the following sources
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10.
In radiographs of bony structures embedded in soft tissue the bone is
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11.
Which of the following terms is associated with diagnostic imaging?
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12.
Wavelength is the distance between the ________ of a _________; Symbol is _______; Unit of measure is _________.
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13.
Which of the following statements about photon interaction is true?
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14.
Which of the following is greater for a 30 keV x-ray than a 60keV x-ray
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15.
An x-ray can be correctly called a
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16.
To apply the inverse square law one must know
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17.
A radiograph produced at an SID of 100 cm results in an exposure of 100mR. What would be the exposure if the SID were reduced to 90 cm?
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18.
For any electromagnetic radiation
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19.
Which statement about visible light is correct?
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20.
The wave equation is described as follows
A.
An increase in frequency results in an increase in energy
B.
they are deflected by a very strong magnet
C.
Crests of a wave; λ-lambda; Å-Angstrom
D.
Point
E.
photon
F.
Velocity is the speed of light
G.
Two distances and one intensity
H.
the distance from one peak to the next is the wavelength
I.
1) Wavelength 2) Frequency 3) Velocity 4) Amplitude
J.
Wavelength
K.
Superficial X-rays
L.
If visible light is transmitted unattenuated the matter is lucent
M.
123 mR
N.
Lead is radiopaque
O.
Wavelength is velocity divided by frequency
P.
The very top(crest) of the amplitude portion of the sine wave
Q.
Radio frequency Microwaves Infra-red Visible light Ultra Violet Light X-Ray Gamma Cosmic
R.
Its frequency decreases with increasing wavelength
S.
radiopaque
T.
is inversely proportional to its wavelength
Type the Answer that corresponds to the displayed Question.
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21.
A radiographic technique produces an exposure of 200 mR at a source to image receptor distance of 100 cm. What would the exposure rate be at an SID of 180 cm?
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22.
According to the Particle Model: Quantum Theory, x-rays are directly proportional to what?
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23.
A radiographic technique produces a patient dose of 200 mrad at a source to skin distance of 80 cm. What would the patient dose be at an SSD of 160 cm if the technique remains the same
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24.
Which of the following characteristics is the same for both ultraviolet radiation and microwaves?
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25.
Which of the following types of electromagnetic radiation interacts with matter such as a particle?
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26.
A single unit of electromagnetic radiation is also called a/an:
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27.
Which of the following terms is not associated with visible light interaction?
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28.
The amplitude of a sine wave is its
Type the Question that corresponds to the displayed Answer.
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29.
A quantum of electromagnetic energy
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30.
have a higher frequency than visible light

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