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115 Cards in this Set
- Front
- Back
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X-rays were discovered: a. November 8, 1805 b. November 8, 1875 c. November 8, 1895 d. November 8, 1985 |
November 8, 1895 |
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Barium platinocyanide was the material in Dr. Roentgen’s laboratory that: a. covered the cathode ray tube b. fluoresced when the cathode ray tube c. was energized was used to produce the radiograph of Bertha Roentgen’s hand d. protected the people in the room from the x-rays |
fluoresced when the cathode ray tube |
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Wilhelm Roentgen’s lab was located in: a. Wurzburg b. Zurich c. Paris d. Boston |
Würzburg |
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Who brought attention to the dangers of x-rays? a. Wilhelm Roentgen b. Bertha Roentgen c. Crookes d. Thomas Edison |
thomas edison |
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Exposure, dose, and dose equivalent are: a. fundamental quantities b. derived quantities c. radiologic quantities d. none of the above |
radiologic quantities |
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the metric system is also known as the: a. british system b. system international (SI) c. system of units (SU) d. french system |
SI |
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in the SI system the unit of measure for mass is: |
c |
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in the SI system the unit of measure for length is: a.meter b.kilometer c.foot d.mile |
meter |
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in the SI system the unit of measure for time is: a.minute b.second c.hour d.day |
second |
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in the british system the unit for measure is: a.meter b.kilometer c.foot d.mile |
foot |
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in the british system the unit of measure for time is: a.minute b.second c.hour d.day |
second |
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______________ is equal to the distance traveled divided by the time needed to cover that distance a.work b.momentum c.velocity d.day |
velocity |
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kilograms-meters per second (kg-m/s) is the unit of measure of: a. velocity b.momentum c.force d.acceleration |
momentum |
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joule is the unit of measure of: a.power b.force c.work d.momentum |
work |
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watt is the unit measure of: a.power b.force c.work d.momentum |
power |
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work/time is the formula to determine: a.power b.force c.work d.momentum |
power |
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the formula mv (mass x velocity) is used to determine: a.power b.force c.work d.momentum |
momentum |
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The formula ma (mass acceleration) is for: a.power b.force c.work d.momentum |
force |
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How much force is needed to move a 30-kg piece of equipment at a rate of 3 m/s2? a. 10 N b. 30 N c. 60 N d. 90 N |
90 N |
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If a basketball goes from being stationary to a velocity of 15 m/s in 3 seconds, what is itsacceleration? a.5 N b.5 m/s2 c.5 m/s d.5 W |
5 m/s^2 |
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What is the momentum of the 20 kg box that is traveling 10 m/s? a. 200 m/s2 b. 200 W c. 200 kg-m/s d. 200 J |
200 kg-m/s |
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How much work is done if 5 N of force is used to lift a box 3 meters high? a. 15 W b. 15 kg-m/s c. 15 N/s d. 15 J |
15 J |
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If 240 J of work is done in 1 minute, how much power is consumed? a. 4 J b. 4 W c. 4 kg-m/s d. 4 m/s |
4 W |
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The property of an object with mass that resists a change in its state of motion is: a. momentum b. power c. energy d. inertia |
inertia |
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The principle of inertia was first described by: a.Wilhelm b.Conrad Roentgen c. Sir Isaac Newton Thomas Alva Edison d. Crookes |
conrad roentgen |
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The ability to do work is: a. power b. energy c. inertia d. momentum |
energy |
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Energy in a stored state is: a. kinetic energy b. energy of motion c. potential energy d. power |
potential energy |
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Kinetic energy is: a. stored energy b. energy being expended c. the same as potential energy d. power |
energy being expended |
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Electromagnetic, chemical, electrical, and thermal are all types of: a. waves b. equipment c. force d. energy |
energy |
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Einstein’s formula, E=MC2, demonstrates the relationship between: a. matter and energy b. energy and electricity c. electricity and mass d. mass and electromagnetic energy |
matter and energy |
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The radiologic unit that quantifies the biological effect of radiation on humans and animals is the: a. Becquerel b. rad c. roentgen d. sievert |
rad |
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The ____________ is the SI unit equivalent to the rad. a. rem b. roentgen c. gray d. becquerel |
gray |
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1 rad = ______________. a. 10^-2 Gy b. 10^-1 Gy c. 10 Gy d. 10^2 Gy |
10^-2 Gy |
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The tube head assembly consists of: a. x-ray tube b. tube stand c. collimator d. all of the above |
all |
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The positive electrode of the x-ray tube is the: |
anode |
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The negative electrode of the x-ray tube is the: |
cathode |
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In a typical radiographic room the anode is located: a. over the head end of the table b. over the foot end of the table c. in the middle of the table d. away from the table |
over the head end of the table |
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The device that restricts the x-ray beam to the area of interest is the: |
collimator |
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The purpose of the mirror inside the collimator is to: a. restrict the x-ray beam b. allow the patient to see himself or herself c. focus the x-ray beam d. reflect the light source |
reflect the light source |
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The floor mount, floor–ceiling mount, and the overhead tube assembly are types of: a. tube stands or mounts b. x-ray tube designs c. collimator devices d. A and B |
tube stands or mounts |
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In the hospital setting, the most widely used tube stand or mount is the: a. floor mount b. floor–ceiling mount c. overhead tube assembly d. under-table tube assembly |
overhead tube assembly |
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A radiographic unit that can be taken to the patient’s bedside is considered: mobile equipment |
mobile equipment |
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The earliest atomic theory is generally associated with: a. Bohr b. Leucippus c. Democritus d. Dalton |
Leucippus |
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The word atom is derived from the Greek word atomos, meaning: |
indivisible |
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In the early 1800s English chemist John Dalton theorized that: a. elements form compounds b. atoms are unique to each element in size and mass c. a chemical reaction results from atoms being rearranged d. all of the above |
all |
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Discovery of the electron is attributed to: a. Dalton b. Bohr c. Thomson d. Rutherford |
thompson |
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The earliest atomic theory based on the arrangement of the solar system is attributed to:a. Bohr b. Rutherford c. Dalton d. Thomson |
rutherford |
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The three fundamental particles of the atom are the: a. element, nucleus, and electron b. electron, nucleus, and proton c. neutron, electron, and proton d. nucleus, proton, and neutron |
neutron, electron, and proton |
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The atomic nucleus contains: a. protons and neutrons b. protons and electrons c. electrons and neutrons d. all of the above |
protons and neutrons |
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The component of the nucleus that has a positive charge and mass is the: a. electron b. neutron c. proton d. none of the above |
proton |
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The component of the nucleus that has mass but no electrical charge is the: a. electron b. neutron c.proton d. none of the above |
neutron |
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If an atom has more electrons than protons it will: a.have a negative charge b. have a positive charge c. be electrically neutral d. have neither a positive not negative charge |
have a negative charge |
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If an atom has the same number of electrons and protons it will: a. have a negative charge b. have a positive charge c. be electrically neutral d. none of the above |
be electrically neutral |
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When an atom becomes negatively or positively charged it is usually due to a change in the numberof: a. protons b. electrons c.neutrons d. all of the above |
electrons |
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A positive ion is: a. a proton b. an atom with more protons than electrons c. an atom with more neutrons that electrons d. an atom with more electrons than protons |
an atom with more protons than electrons |
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The force that holds the protons and neutrons together in the nucleus is the: a. binding energy b. nuclear energy c. atomic energy d. proton/neutron energy |
binding energy |
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If a particle strikes an atom with the same amount of energy as the atom’s binding energy: a.the atom will become a positive ion b. the atom will become a negative ion c. it can split the atom d. it can fuse the atom |
it can split the atom |
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The electrons stay in orbit around the nucleus because of: a. their attraction to the protons b. their attraction to the neutrons c. their attraction to the other electrons d. all of the above |
their attraction to the protons |
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The electron binding energy depends on: a. how close it is to the nucleus b. how many neutrons there are in the nucleus c. how many protons there are in the nucleus d. A and C |
A and C |
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The electron binding energy is stronger when: a.there are more protons and the electron is closer to the nucleus b. there are fewer protons and the electron is closer to the nucleus c. there are fewer protons and the electron is farther from the nucleus d. there are more protons and the electron is farther from the nucleus |
there are more protons and the electron is closer to the nucleus |
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The L shell can hold _______ electrons. a. 1 b. 2 c. 4 d. 8 |
8 2 x 2^2 |
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The N shell can hold _______ electrons. a. 4 b. 8 c. 32 d. 64 |
32 2 x 2^4 |
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Except for the K shell, the maximum number of electrons that can be in the outermost shell of anatom is: a. 4 b. 8 c. 16 d. 32 |
8 |
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The number of protons and neutrons in the atom’s nucleus is the: a. atomic number b. atomic mass number c. element d.compound |
atomic mass number |
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The simplest form of the substances that form matter is the: a. atomic number b. atomic mass number c. element d. compound |
element |
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Two or more atoms that bond together form a(n): a. atomic number b. atomic mass number c. element d. compound |
compound |
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In a neutral atom, the atomic number indicates the number of: a. protons b. neutrons c. electrons d. A and C |
protons and electrons |
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An atom of helium (4^2He) has: a. two protons b. four protons c. four neutrons d. four electrons |
two protons |
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An atom of oxygen (16^8O) has: a. eight protons b. eight neutrons c. eight electrons d. all of the above |
all |
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How many electrons does a neutral atom of carbon (12^6C) have? a. 3 b.6 c. 12 d. 18 |
6 |
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For the chemical element sodium (22^11Na), the atomic number is: a. eleven b. twenty two c. thirty three d. none of the above |
eleven |
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Atoms with the same number of protons but different number of neutrons are: a. isotopes b. isotones c. isobars d. isomers |
isotopes |
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Atoms with the same atomic number but different atomic mass numbers are: a. isotopes b. isotones c. isobars d. isomers |
isotopes |
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Atoms with the same number of neutrons but different number of protons are: a. isotopes b. isotones c. isobars d. isomers |
isotones |
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Atoms with different atomic numbers but the same atomic mass numbers are: a. isotopes b. isotones c. isobars d. isomers |
isobars |
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Atoms with the same atomic number and atomic mass number but have different energy within theirnuclei are: a. isotopes b. isotones c. isobars d. isomers |
isomers |
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23^11Na is an _______________ of 22^11Na. a. isotopes b. isotones c. isobars d. isomers |
isotopes |
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131^53I and 132^54Xe are: a. isotopes b. isotones c. isobars d. isomers |
isotones |
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Atoms in each period have the same number of: a.electrons in the outermost shell b. atomic mass number c. electrons d. electron shells |
electrons |
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A compound consists of: a. at least two molecules b. at least two elements c. at least two different materials d. all of the above |
at least two elements |
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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. compounding bond d. covalent bond |
covalent bond |
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When the bond between two atoms is due to one atom giving up an electron and the other atomgaining an electron, it is called a: a. molecular bond b. ionic bond c. compounding bond d. covalent bond |
ionic bond |
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Electromagnetic theory was developed in the late 1800s by: a. Bohr b. Rutherford c. Maxwell d. Planck |
maxwell |
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Electromagnetic radiation: a. has no mass b. has significant mass c. has varying amounts of mass d. none of the above |
has no mass |
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Electromagnetic radiation is a form of energy that originates from: a. electricity b. magnetism c. the atom d. something moving in space |
the atom |
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In the formula E = hf, E represents: a. Planck’s constant b. frequency c. energy d. electricity |
energy |
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In the formula E = hf, h represents: a. Planck’s constant b. frequency c. energy d. electricity |
plancks constant |
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The formula E = hf demonstrates that: a. as frequency increases, energy decreases b. as frequency increases, energy increases c. as energy increases, heat decreases d. as energy increases, heat increases |
as frequency increases, energy increases |
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When considering the wave properties of electromagnetic radiation, the maximum height of a waveis: a. wavelength b. amplitude c. frequency d. velocity |
amplitude |
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Microwaves travel at a velocity of: a. 3 x 10^6 m/s b. 3 x 10^7 m/s c. 3 x 10^8 m/s d. 3 x 10^9 m/s |
3 x 10^7 m/s |
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As a wave’s wavelength increases, its frequency: a.stays the same b. increases c. decreases d. it depends on the type of electromagnetic radiation |
decreases |
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Wavelength is generally measured in: a. hertz b. feet c. centimeters d. meters |
meters |
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1 kilohertz (kHz) is equal to: a. 100 hertz b. 1000 hertz c. 1,000,000 hertz d. 1,000,000,000 hertz |
1000 hertz |
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What is the frequency of electromagnetic radiation if the wavelength is 1 x 10^-4m? a. 3 x 10^-12 Hz b. 3 x 10^-4 Hz c. 3 x 10^4 Hz d. 3 x 10^12 Hz |
3 x 10^12 Hz |
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The inverse square law relates the intensity (of light/x-rays) to: a. velocity b. time c. mass d. distance |
distance |
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The process of removing an electron from an atom is: a. annihilation b. atomization c. ionization d. none of the above |
ionization |
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An ion pair is: a. an electron and proton b. a proton and neutron c. an atom and the electron that was removed from it d. an atom with an extra electron and an atom that is missing an electron |
an atom and the electron that was removed from it |
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X-rays and gamma rays differ in: a. the energy source that produces them b. the effect they have on matter c. their energy level d. all of the above |
the energy source that produces them |
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X-rays are produced: a. from unstable atoms b. using fast-moving electrons c. using fast-moving atoms d. using fast-moving metals |
using fast-moving electrons |
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Gamma rays are produced: a. from unstable atoms b. using fast-moving electrons c. using fast-moving atoms d. using fast-moving metals |
from unstable atoms |
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Radio waves are used in: a. computed tomography b. ultrasound c. radiography d. magnetic resonance imaging |
magnetic resonance imaging |
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Microwaves heat up food because their energy causes the atoms and molecules to: a. dissolve b. expand c. vibrate d. contract |
vibrate |
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The electromagnetic radiation that passes between the television remote and television is: a. visible light b. infrared light c. microwaves d. ultraviolet light |
infrared light |
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An object we see as white is _______________ all of the wavelengths of visible light. a. absorbing b. diffusing c. reflecting d. changing |
reflecting |
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Particulate radiation includes: a. alpha particles b. x-ray particles c. beta particles d. A and C e. all of the above |
A and C |
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Alpha and beta particles are similar to x-rays and gamma rays in that they: a. have no mass b. are part of the electromagnetic spectrum c. have the energy to ionize matter d. have characteristics of wavelength and frequency |
have the energy to ionize matter |
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The general process of a radioactive element giving off excess energy and particles to regainstability is: a. radioactivity b. radioactive decay c. ionization d. electron emission |
radioactive decay |
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Radioactive elements: a. have excess energy in their nuclei b. emit particles and energy c. are trying to become stable elements d. all of the above |
all of the above |
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Half-life is: a. the rate at which a radioactive material decays b. half the time it takes for all the radioactivity to decay c. the rate at which particulate radiation is emitted from a radioactive atom’s nucleus d. none of the above |
the rate at which a radioactive material decays |
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The half-life of technetium-99m is 6 hours. How many unstable atoms will remain after 12 hours? a.One sixth of the original amount b. One fourth of the original amount c. One third of the original amount d. Half of the original amount |
One fourth of the original amount |
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Alpha particles consist of: a. two protons and two electrons b. two protons and two neutrons c. two electrons and two neutrons d. none of the above |
two protons and two neutrons |
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An alpha particle is the same as the nucleus of a(n): a. hydrogen atom b. oxygen atom c. carbon atom d. helium atom |
helium atom |
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When compared with a beta particle, the alpha particle is: a. much smaller b. much larger c. more penetrating d. none of the above |
much larger |
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The positively charged beta particle is a(n): a. electron b. alpha particle c. negatron d. positron |
positron |
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As compared to an alpha particle, a beta particle: a. has less mass b. has more mass c. has the same mass d. is less penetrating |
has less mass |
