Chapter 01: Essential Concepts of Radiologic Science Bushong: Radiologic Science for
Edition by Bushong Chapter 1-40 [Updated 2024] Technologists, 12th Edition
MULTIPLE CHOICE
1. Matter is measured in .
a.kilograms
b.joules
c.electron volts
d.rems
ANS: A
Matter is measured in kilograms.
2. Atoms and molecules are the fundamental building blocks of .
a. energy
b. radiation
c. matter
d. gravity
ANS: C
Atoms and molecules are the fundamental building blocks of matter.
3. Ice and steam are examples of two forms of .
a. matter
b. radiation
c. energy
d. work
ANS: A
Ice and steam are examples of two forms of matter.
4. The formula E = mc2 is the basis for the theory that led to the development of . a. x-
rays
b. electromagnetic radiation
c. nuclear power
d. cathode ray tubes
ANS: C
The formula E = mc2 is the basis for the theory that led to the development of nuclear power.
5. Radio waves, light, and x-rays are all examples of energy.
TESTBANK
a. nuclear
b. thermal
c. electrical
d. electromagnetic
,Test Bank For Radiologic Science for Technologists 12th
c. smoke detectors
Edition by Bushong Chapter 1-40 [Updated 2024] d. nuclear power plants
ANS: D ANS: B
Electromagnetic energy includes radio waves, light, and x-rays as well as other parts of the Medical x-ray exposure is the biggest source of man-made radiation.
spectrum.
11. In the United States, we are exposed to _ mSv/year of ionizing radiation from the
6. A moving object has energy.
natural environment.
a. potential
a. 0 to 5
b. kinetic
b. 5 to 20
c. nuclear
c. 20 to 90
d. electromagnetic
d. 100 to 300
ANS: B
A moving object has kinetic energy. ANS: A
We are exposed to about 3 mSv/yr of ionizing radiation from natural environmental sources
7. What is the removal of an electron from an atom called? in the United States.
a.Ionization
b.Pair production 12. Today, radiology is considered to be a(n) occupation.
c.Irradiation a. safe
d.Electricity b. unsafe
ANS: A c. dangerous
The removal of an electron from an atom is called ionization. d. high-risk
ANS: A
8. Ionizing radiation is capable of removing from atoms as it passes through Today, radiology is considered to be a safe occupation because of effective radiation
the matter. protection practices.
a. neutrons
b. protons 13. is a special quantity of radiologic science.
c. electrons a. Mass
d. ions b. Velocity
ANS: C c. Radioactivity
Ionizing radiation is capable of removing electrons from atoms as it passes through the d. Momentum
matter. ANS: C
Radioactivity is a special quantity of radiologic science.
9. The energy of x-rays is _ .
a. thermal 14. What does ALARA mean?
b. potential a. All Level Alert Radiation Accident
c. kinetic b. As Low As Reasonably Achievable
d. electromagnetic c. Always Leave A Restricted Area
ANS: D d. As Low As Regulations Allow
X-rays are a form of electromagnetic energy. ANS: B
ALARA means As Low As Reasonably Achievable.
10. The biggest source of man-made ionizing radiation exposure to the public is
. 15. Computed tomography was developed in the .
a. atomic fallout a. 1890s
b. diagnostic x-rays b. 1920s
, Test Bank For Radiologic Science for Technologists 12th
d. meters; kilos; seconds
Edition by Bushong Chapter 1-40 [Updated 2024]
ANS: B
c. 1970s The basic quantities measured in mechanics are mass, length, and time.
d. 1990s
2. An example of a derived quantity in mechanical physics is a .
ANS: C
a. meter
Computed tomography was developed in the 1970s.
b. second
16. Filtration is used to . c. dose
a. absorb low-energy x-rays d. volume
b. remove high-energy x-rays ANS: D
c. restrict the useful beam to the body part imaged Volume is a derived unit.
d. fabricate gonadal shields
3. Exposure is measured in units of .
ANS: A
a. becquerel
Filtration is used to absorb low-energy x-rays.
b. sieverts
TRUE/FALSE c. meters
d. grays
1. Mass is the quantity of matter as described by its energy equivalence.
ANS: D
ANS: T Exposure is measured in units of grays.
Mass is the quantity of matter as described by its energy equivalence.
4. What is the decimal equivalent of the proper fraction 4/1000?
2. Radiation is the removal of an electron from an atom. a. 0004
b. 004
ANS: F
c. 04
Ionization is the removal of an electron from an atom.
d. 4
3. Radiology emerged as a medical specialty because of the Snook transformer and the Crookes ANS: B
x-ray tube. The decimal equivalent of the proper fraction 4/1000 is .004.
ANS: F 5. What is the decimal equivalent of the improper fraction 289/74?
Radiology emerged as a medical specialty because of the Snook transformer and the Coolidge a. 390
x-ray tube. b. 3.90
c. 39.0
d. 390.0
Chapter 02: Basic Physics Primer Bushong: Radiologic Science for Technologists, 12th ANS: B
Edition The decimal equivalent of the improper fraction 289/74 is 3.90.
6. The first step to expressing a number in scientific notation is to .
a. round up to the nearest 1000
MULTIPLE CHOICE b. round down to the nearest 1000
c. write the number in decimal form
1. The basic quantities measured in mechanics are _ , , and . d. write the number as a fraction
a. volume; length; meters
b. mass; length; time ANS: C
c. radioactivity; dose; exposure
, Test Bank For Radiologic Science for Technologists 12th
d. Kilograms per square meter
Edition by Bushong Chapter 1-40 [Updated 2024]
ANS: C
The first step to expressing a number in scientific notation is to write the number in decimal Mass density should be reported with units of kilograms per cubic meter (kg/m3).
form.
12. An object at rest will if no outside forces are applied.
7. What is 6080 in exponential form? a. stay at rest
a. 6080.0 104 b. decrease mass
b. 608.0 104 c. increase velocity
c. 6.080 103 d. decrease velocity
d. 6080 103 ANS: A
An object at rest will stay at rest if no outside forces are applied.
ANS: C
The number 6080 in exponential form is 6.080 103 13. Which of the following explains the difference between speed and velocity?
a. One has motion, and the other does not.
8. Graphs are typically based on two axes; a and a . a. y-axis; z-axis
b. One involves acceleration, and the other does not.
b. oblique; horizontal
c. One involves time, and the other does not.
c. x-axis; y-axis
d. One has direction, and the other does not.
d. vertical; oblique
ANS: B
ANS: C
Velocity includes acceleration and speed does not. Speed is the rate at which an object covers
Most graphs are based on two axes: a horizontal or x-axis and a vertical or y-axis.
distance.
9. In radiologic science, all of the following are special quantities, except:
14. For every action, there is an equal and opposite reaction, this describes which Newton’s law?
a. exposure.
a. Newton’s first law of motion
b. distance.
b. Newton’s second law of motion
c. dose.
c. Newton’s third law of motion
d. effective dose. d. Newton’s law of inertia
ANS: B ANS: C
In radiologic science, special quantities are those of exposure, dose, effective dose, and Newton's third law of motion states that for every action, there is an equal and opposite
radioactivity. reaction.
15. Work is the product of and distance.
10. The SI unit of velocity is . a. force
a. meters per second b. gravity
b. miles per hour c. acceleration
c. meters per millisecond d. motion
d. kilometers per second ANS: A
ANS: C Work is the product of force and distance.
Units of velocity in SI are meters per second (m/s).
16. The transfer of heat by the emission of infrared radiation is . a. electric radiation
11. Mass density should be reported in which units? b. magnetic energy
a. Coulomb/kilogram c. mechanical energy
b. Newtons per square meter d. thermal radiation
c. Kilograms per cubic meter ANS: D