Chapter 2 & 3 Test Flashcards
An ion pair is:
a.) an electron that has been knocked out of orbit
b.) an atom and the electron that was removed
c.) an electron
d.) an atom with more electrons than neutrons
b.) an atom and the electron that was removed
All of the electromagnetic radiations are capable of ionizing matter.
a.) true
b.) false
b.) false
Amplitude is defined as:
a.) the maximum height of a wave
b.) the distance between the peak of 1 wave to the peak of the next wave
c.) the speed of a wave
d.) the number of waves passing a given point each second
a.) the maximum height of a wave
As a waves wavelength decreases, its frequency:
a.) decreases
b.) it depends on the type of EMR
c.) stays the same
d.) increases
d.) increases
During a fluoroscopy procedure the tech stands at 3 feet from the xray tube for 1 hour and acquires an equivalent dose of 0.2 msv. How much dose would the tech have received had they stood 6 feet from the tube for 45 minutes?
0.04 msv
Electromagnetic energy cannot travel through a vaccuum.
a.) true
b.) false
b.) false
Electromagnetic energy is:
a.) a form of energy that exists as an electric and magnetic disturbance in space
b.) a form of chemical energy
c.) a form of energy that exists as stored energy inside a tube
d.) exists due to atomic and molecular motion
a.) a form of energy that exists an as electric and magnetic disturbance in space
Electromagnetic, chemical, electrical and thermal are all types of:
a.) waves
b.) ionizing radiation
c.) non ionizing radiation
d.) energy
d.) energy
Energy in a stored state is:
a.) energy in motion
b.) potential energy
c.) power
d.) kinetic energy
b.) potential energy
For the chemical element (22/11 Na), the atomic mass number is:
a.) 33
b.) 22
c.) 11
d.) none of the above
b.) 22
Frequency is typically measured in:
a.) meters
b.) centimeters
c.) feet
d.) hertz
d.) hertz
How many neutrons does 7/3 Li (lithium) have?
a.) 10
b.) 4
c.) 7
b.) 4
How many nucleons does (131/53 I) have?
a.) 53
b.) 131
c.) 184
d.) 78
b.) 131
If an xray beam has an intensity of 1.2 mgy at a distance of 1.2 mgy at a distance of 38’’, what will the intensity be at a 72’’ SID?
a.) .33
b.) 4.3
c.) .67
d.) .033
a.) .33
Like charges ________ and unlike charge ____________.
a.) repel, repel
b.) attract, repel
c.) repel, attract
d.) attract, repel
c.) repel, attract
Radiation emittef from a standard radio broadcast antenna:
a.) has relatively high energy
b.) is electromagnetic radiation
c.) has a higher frequency than microwaves
d.) is sound
b.) is electromagnetic radiation
The N shell can hold ________ electrons.
a.) 8
b.) 4
c.) 64
d.) 32
d.) 32
The atomic number:
a.) is the number of protons plus neutrons
b.) has the symbol n
c.) has the symbol k
d.) is the number of protons
d.) is the number of protons
The electron shell closest to the nucleus is lettered:
a.) k
b.) h
c.) l
a.) k
Wavelength is defined as:
a.) the speed of a wave
b.) the distance between the peak of 1 wave to the peak of the next wave
c.) the number of waves passing a given point each second
d.) the maximim height of a wave
b.) the distance between the peak of 1 wave to the peak of the next wave
When the bond between two atoms is due to their sharing an outer shell electron, this is called a:
a.) molecular bond
b.) ionic bond
c.) covalent bond
d.) compounding bond
c.) covalent bond
Which of the following members of the electromagnetic spectrum have the highest velocity?
a.) xrays and gamma rays
b.) radiowaves
c.) microwaves
d.) they all have equal velocity
d.) they all have equal velocity
Alpha and beta particles have the ability to ionize matter.
a.) true
b.) false
a.) true
Alpha and Beta particles are similar to xrays and gamma rays in that they
a.) have the ability to ionize matter
b.) have characteristics of wavelength and frequency
c.) have no mass
d.) are part of the electromagnetic spectrum
a.) have the ability to ionize matter
Electromagnetic radiation:
a.) has mass that increases with increasing velocty
b.) has energy represented by amplitude
c.) exits at zero velocity
d.) exists only if its velocity is 3x10^8
d.) exists only if its velocity is 3x10^8
In the formula E= hf, h represents
a.) frequency
b.) electricity
c.) energy
d.) plancks constant
d.) plancks constant
In the formula E= hf, E represents
a.) energy
b.) plancks constant
c.) frequency
d.) electricity
a.) energy
Photons with the highest frequencies have the __________
a.) longest wavelengths
b.) highest velocity
c.) shortest wavelengths
c.) shortest wavelengths
A tech is about to perform a transthoracic shoulder exam. They decide on using 80 kvp and 35 mas
but wants to set a breathing techniqu of 2 seconds but the system showstime in milliseconds. what would be the appropriate ma and ms the tech would set?
17.5 ma and 2000 ms
Which of the following statements about beta particles are true?
a.) beta particles are larger and more ionizing than alpha particles
b.) beta particles are created from unstable atoms
c.) beta particles are very similar to xrays
d.) beta particles are smaller and lighter than alpha particles
a.) a, b and c only
b.) c and d only
c.) a and c only
d.) b, c and d only
d.) b, c and d only
There are two types of atomic interactions that occur within the xray tube to produce xrays. Which type occurs from knocking an electron out of orbit?
a.) covalent bonding
b.) bremmstrahlung
c.) characteristic
d.) non ionizing energy
c.) characteristic
When compared to visible light, xrays have greater:
a.) wavelength
b.) velocity
c.) frequency
d.) charge
c.) frequency
Which of the following is considered a nucleon?
a.) alpa particle
b.) proton
c.) beta particle
d.) electron
b.) proton
Who is accredited with discovering radium, or radioactivity?
a.) marie and pierre curie
b.) dmitri mendeleev
c.) john dalton
d.) henry winker
a.) marie and pierre curie
Who is attributed to organizing known elements into the periodic table?
a.) dmitri mendeleev
b.) john dalton
c.) jj thomson
d.) ernest rutherford
a.) dmitri medeleev
Photns with the highest frequencies have the __________
a.) longest wavelengths
b.) highest velocty
c.) lowest energy
d.) shortest wavelengths
d.) shortest wavelengths
The inverse square law relates intensity of lights/xrays to:
a.) velocity
b.) time
c.) distance
d.) mass
c.) distance
Which member of the electromagnetic spectrum has the longest wavelength?
a.) visible light
b.) radiowaves
c.) xrays
d.) microwaves
b.) radiowaves
Which of the following members of the elctromagnetic spectrum has the ability to ionize matter?
a.) radiowaves
b.) xrays
c.) microwaves
d.) ulntraviolet light
a.) b only
b.) b and d
c.) a b c and d
d.) d only
a.) b only
Which of the following originate from an unstable nucleus?
1.) alpha particles
b.) beta particles
c.) xrays
d.) gamma rays
a.) a and b only
b.) c and d only
c.) a, b, c, and d
d.) a, b and d only
d.) a, b and d only
Which of the following statements about beta particles are true?
a.) beta particles are larger and more ionizing than alpha particles
b.) beta particles are created from unstable atoms
c.) beta particles are cery similar to xrays
d.) beta particles are similar and lighter than alpha particles
a.) a and c
b.) c and d
c.) b, c and d
d.) a, b and c
c.) b, c and d
xrays and gamma rays differ in:
a.) the effect they have on matter
b.) all of teh above
c.) the enrgy source that produces them
d.) their energy level
c.) the energy source that produces them
Radiation with suffiecient energy to detach an electron from an atom describes:
a.) ion pair
b.) ionizing radiation
c.) electromagnetic radiation
d.) radiation therapy
b.) ionizing radiation
The negative electrode of the xray tube is the:
a.) canode
b.) anode
c.) diode
d.) cathode
d.) cathode
An atom in a normal state has an electrical charge of_________
a.) positive
b.) one
c.) negative
d.) zero
d.) zero
Atoms with a different number of protons but the same combined number of protons and neutrons are:
a.) isotopes
b.) isomers
c.) isobars
d.) isotones
c.) isobars
In a neutral atom, the atomic number indicates the number of:
a.) protons and electrons
b.) protons
c.) neutrons
d.) electrons
e.) protons and neutrons
e.) protons and neutrons
The component of the nucleus that has mass but no electrical charge is the:
a.) none of the above
b.) neutron
c.) electron
d.) proton
b.) neutron
If a particle strikes a nucleus with the same amount of enrgy as the atoms nuclear binding energy:
a.) it can split the atom
b.) the atom will become a negative atom
c.) the atom will become a positive atom
d.) it can fuse the atom
a.) it can split the atom
The component of the nucleus that has a positve charge and mass is the:
a.) proton
b.) electron
c.) none of the above
d.) neutron
a.) proton
The fundamental component of the atom that has the smallest mass is the:
a.) nucleus
b.) neutron
c.) proton
d.) electron
d.) electron
