TEST BANK For Radiologic Science for Technologists, 12th Edition by Stewart C Bushong, Verified Chapters 1 - 40, Complete Newest Version
Test Bank For Radiologic Science for Technologists 12th Edition by Stewart C Bushong All Chapters 1-40 Verified Solution.
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TEST BANK For Radiologic Science for Technologists, 12th
Edition by Stewart C Bushong, Verified Chapters 1 - 40,
Complete Newest Version
What two things make up our universe? - ANSWER: Matter and energy
_________ is anything that occupies space and has mass. - ANSWER: Matter
Mass - ANSWER: The quantity of matter contained in any physical object
_________ is the ability to do work and can exist in several forms. - ANSWER: Energy
What is the fundamental building block of matter? - ANSWER: Atom
Potential Energy - ANSWER: is the ability to do work
Kinetic Energy - ANSWER: is the energy of motion
Electric Energy - ANSWER: Represents the work that can be done when an electron
moves through an electric potential difference (voltage)
Electromagnetic Energy - ANSWER: The energy that travels through space and is a
combination of electric and magnetic fields (used in X-ray imaging)
What did Albert Einstein have to say about mass and energy?
(Theory of Relativity) - ANSWER: E = mc^2
E - energy
M - mass
C - velocity
What is the speed of light? - ANSWER: 3.00 x 10^8 m/s (or 186,000 miles per second)
Radiation - ANSWER: is the transfer of energy
Ionizing Radiation - ANSWER: Any type of radiation that is capable of removing an
orbital electron from the atom with which it interacts
Ion pair - ANSWER: The orbital electron and the atom from which it was separated
with (electron is negative, atom is positive)
When were x-rays discovered? - ANSWER: November 8th, 1895
Who accidentally discovered x-rays? - ANSWER: Wilhelm Conrad Roentgen
,Who was the first American fatality because of x-rays? - ANSWER: Clarence Dally
What tube aided in the discovery of x-rays? - ANSWER: Crookes Tube
Properties of X-rays - ANSWER: - Highly penetrating and invisible
- Not affected by electric or magnetic fields
- Can be produced over a wide variety of energies and wavelengths
- Travel in straight lines
What is the largest source of natural environment radiation? - ANSWER: Radon
ALARA - ANSWER: As Low As Reasonably Achievable
Basic Quantities - ANSWER: - Mass
- Time
- Length
Derived Quantities - ANSWER: - Volume
- Mass Density
- Velocity
Newton's First Law of Mechanics (Inertia) - ANSWER: A body will remain at rest or
continue to move with constant velocity in a straight line unless acted upon by an
external force
Newton's Second Law of Mechanics (Force) - ANSWER: The force on an accelerating
object is equal to mass multiplied by the acceleration (F = ma)
Newton's Third Law of Mechanics (Action & Reaction) - ANSWER: For every action
there is an equal opposite reaction
Work - ANSWER: Joule
Energy - ANSWER: is the ability to do work; Erg, Joule
Force - ANSWER: Newton, Dyne
Power - ANSWER: is the rate of doing work; Watt, Joule/sec
Velocity - ANSWER: Distance over time
Acceleration - ANSWER: Velocity over time
, Electric Potential - ANSWER: Volt
Charge - ANSWER: Coulomb
Current - ANSWER: Ampere
Heat / Temperature - ANSWER: Fahrenheit to Celsius = 9/5C + 32 = F
Celsius to Fahrenheit = 5/9 (F-32) = C
Exposure (Roentgen/R) or Air Kerma (Gya) - ANSWER: The kinetic energy transferred
from photons to electrons during ionization and excitation
Absorbed Dose (Rad) or Gray (Gyt) - ANSWER: Radiation energy absorbed per unit
mass; depends on the type of tissue being irradiated
Effective Dose (Rem) or Sievert (Sv) - ANSWER: The quantity of radiation received by
radiation workers and populations as well as patient dose (occupational radiation)
Radioactivity (Curie/Ci) or Becquerel (Bq) - ANSWER: The unit of quantity of
radioactive material, not the radiation emitted by that material
The first Nobel Prize in physics was awarded to: - ANSWER: Wilhelm Conrad
Roentgen
What do collimation and filtration do? - ANSWER: Reduce patient dose
Every measurement has a magnitude and a ________. - ANSWER: Unit
Resistance - ANSWER: Ohms (Ω)
The S.I. unit of measure for the Absorbed Dose of radiation or RAD is the: - ANSWER:
Gray
Energy is measured in: - ANSWER: - Joules
- Electron Volts
Work = - ANSWER: Force x distance
Atoms and molecules are the fundamental building blocks of - ANSWER: Matter
Energy that is transferred through space is referred to as: - ANSWER: Radiation
X-rays, gamma rays, and ultraviolet light are all forms of ________ radiation. -
ANSWER: Electromagnetic
A speeding electron has both - ANSWER: Mass and kinetic energy
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