module 1- bushong
which of the following is a state of energy? a) chemical b) electrical c) potential d) thermal
potential
"stored energy" is also known as
potential energy
a dose of 0.01 Sv may also be expressed as which of the following? a) 1R b) 1 Rad c) 1 Rem d) 1 Curie
1 Rem
the ability to do work is known as:
Energy
what is the SI unit for RAD?
Gray
what is the largest natural decay of uranium that is located in concrete, bricks, and is a radioactive gas called?
radon
this type of radiation results from deposits of uranium, thorium, and other radionuclides in the Earth
terrestrial radiation
energy of motion at the molecular level
thermal energy (heat)
T or F a unit of measure is a value agreed upon by a society to give meaning to a quantity
true
fundamental quantities include all of the following EXCEPT: a)mass b)velocity c)length d)time
velocity
what is the SI unit for power
watt
what is the difference between mass and weight?
weight describes mass of an object in a gravitational field
mass, distance, and time are needed to determine what derived quantity?
work
anything that occupies space and has shape or form is:
matter
anything that occupies space describes:
matter
atoms and molecules are the fundamental building blocks of__________
matter
which of the following is expressed in kg-m/s?
momentum
What best describes the System International?
A system that uses the meter, kilogram, and second
which system uses the force of gravity to define mass?
British system
what does ALARA stand for?
as low as reasonably achievable
Roentgen discovered x-rays by noticing the fluorescent glow of ________ during one of his experiments with a cathode ray tube?
barium platinocyanide
Roentgen discovered x-rays by noticing the fluorescent glow of_______ during one of his experiments with a cathode ray tube?
barium platinocyanide
what was the phosphors located on the glass plate that glowed when Roentgen discover x-rays?
barium platinocyanide
is the energy released by a chemical reaction
chemical energy
particulate and electromagnetic radiation emitted by the sun and stars
cosmic
natural sources of ionizing radiation: (3)
cosmic rays terrestrial radiation internally deposited radionuclides
what is the unit for measuring activity of radionuclide?
curie or SI unit Becquerel
_________ x-rays constitute the largest man-made source of ionizing radiation
diagnostic x-rays
represents the work that can be done when an electron moves through an electrical potential (voltage)
electrical energy
radio waves, light and x-rays are all examples of ______ energy
electromagnetic energy
radio waves, light, and x-rays are all examples of ________ energy
electromagnetic energy
the least familiar form of energy. is the type of energy used in an x-ray
electromagnetic energy
ionizing radiation is capable of removing _______ from atoms as it passes through the matter
electrons
ionizing radiation is capable of removing ________ from atoms as it passes through the matter
electrons
where do you get cosmic particles from?
emitted by the sun and stars
where do you get terrestrial radiation from?
emitted from deposits of uranium, thorium, and other radioactive substances in the earth
a joule is a unit measurement for____
energy
a joule is a unit measurement for______
energy
the ability to do work describes what?
energy
all matter is composed of:
fundamental building blocks called atoms
a body's resistance to a change in its state of motion is:
inertia
what is known as: anything in motion will stay in motion unless some type of resistance is applied and anything at rest will remain at rest unless some type of force is applied
inertia
what is newton's 1st law?
inertia
which of the following is solely a property of mass?
inertia
the removal of an electron from an atom is considered
ionization
what is the removal of an electron from an atom called?
ionization
_______________ is any type of radiation that is capable of removing an orbital electron from the atom with which it interacts. This type of interaction between radiation and matter is called______________
ionizing radiation ionization
matter is measured in:
kilogram
which of the following is a unit of measure for a fundamental quantity?
kilogram
mass is measured in
kilograms
the maximum energy that a photon in any beam may have is expressed by the __________
kilovoltage peak (kVp)
a moving object has _______ energy
kinetic
a moving object has_____ energy
kinetic
the energy of motion
kinetic energy
matter is measured in:
kiologram
what is the appropriate unit of measure for velocity?
m/s
all of the following are derived quantities except:
mass
Atoms and molecules are the fundamental building blocks of______
matter
anything that occupies space and has mass:
matter
Which of the following is a unit of measure for a derived quantity? a) meter b) kilogram c)second d) newton
newton
when was x-rays discovered
nov. 8th, 1895
energy that is contained within the nucleus of an atom. an example of the uncontrolled released of nuclear energy is the atomic bomb
nuclear energy
Where was Roentgen working when he discovered the x-ray?
physics lab at Wurzburg University in Germany
name 6 types of energy
potential kinetic chemical thermal nuclear electromagnetic
ability to do work by virtue position
potential energy
the transfer of energy is known as:
radiation
what does RAD stand for?
radiation absorbed dose
what does rem stand for?
radiation equivalent man
the largest source of natural environmental radiation is___________
radon
SI unit for energy and work is the:
Joule (J)
filtration is used to
absorb low energy x-rays
what is the velocity of an object if it travels 50 meters in 5 seconds?
10m/s
what is the power consumed if 500 J of work is done in 4 seconds?
125 W
in the US the first fatality from x-ray exposure was reported in what year?
1904
in the US the first fatality from x-ray exposure was reported in?
1904
useful range of x-ray energies extras from _______ to _______ kVp
20 to 150
what is the force necessary to move a 100 kg object at a rate of 3 m/s?
300N
what is the work done if a force of 300N is applied over a distance of 15 meters?
4,500J
what is the SI unit for the Roentgen?
C/kg
a quantity of radioactive iodine would be expressed in what unit of measurement? a) Roentgen b) Rad c) Rem d) Curie
Curie
T or F mass changes with gravitational field
False
a special type of radiation that includes x-rays
Ionizing radiation
what is the SI unit for Force?
Newton
Wilhelm Roentgen discovered the x-ray in:
November 8th, 1895
what month, day, and year did Roentgen discover x-rays?
November 8th, 1895
what months, day, and year did Roentgen discover x-rays?
November 8th, 1895
a radioactive gas that is produced by the natural radioactive decay of uranium, which is present in trace quantities in the Earth
Radon
a healthcare worker's film badge report would be reported in which unit of measure? a) Roentgen b) Rad c) Rem d)curie
Rem
measuring the radiation output of an x-ray unit would be expressed in: a) Roentgen b) Rad c) rem d) curie
Roentgen
which unit is based on the number of ion pairs created in air? a) Roentgen b) Rad c) Rem d) Curie
Roentgen
what describes "exposure in air" ?
Roentgen or C/kg
What is the SI unit for REM?
Sivert (Sv)
define ionization
addition or removal of an electron
name 2 types of particulate radiations
alpha particle beta particle
what is the definition of inertia
anything in motion will stay in motion unless some type of resistance is applied and anything at rest will remain at rest unless some type of force is applied
ALARA
as low as reasonably achievable
What does ALARA stand for?
as low as reasonably achievable
