Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
RADT 334- UNIT 1
| Question | Answer |
|---|---|
| the ability to do work or physically influence surroundings because of position, chemical state or nuclear state. | energy |
| Einstein's mass-energy equivalence equation. | E=mc^2 |
| any electromagnetic or particulate radiation that has sufficient energy to remove an electron from an atom. | ionizing radiation |
| 1/1000 of a rad. | mrad |
| average level of natural environmental radiation in mrads/year. | 300 |
| the procedure of confining the x-ray beam to the area of anatomic interest to limit patient radiation dose. | collimation |
| this is the phosphor with which Roentgen was experimenting with when he discovered x-rays. | barium platinocyanide |
| the year x-rays were discovered. | 1895 |
| the year Roentgen won the Nobel Prize in physics. | 1901 |
| true/false: mass fluctuates with gravitational influence. | false |
| name 4 examples of electromagnetic radiation. | x-rays, gamma rays, visible light, radiowaves, microwaves, infrared radiation, ultraviolet radiation |
| what is the purpose of x-ray beam filtration? | to remove low energy x-rays from the beam; lower patient dose |
| what does ALARA stand for? | as low as reasonably achievable |
| name 3 sources of naturally occurring radiation. | cosmic, terrestrial, internally deposited radionuclides |
| what naturally occurring radiation source is the #2 cause of lung cancer in the United States in non-smokers? | radon gas |
| 3 fundamental units of measurement. | length, mass and time |
| secondary quantities that are derived from a combination of one or more of the 3 base quantities. | derived quantity |
| quantities derived from the base quantities that are used only in specialty areas of science. | special quantity |
| Newton's first law | inertia |
| the rate of change of velocity with time | acceleration |
| the transfer of thermal energy from one position to another by a moving fluid medium (liquid or gas) | convection |
| the force applied to an object multiplied by the distance over which it is applied | work |
| the rate of change of position with time; aka speed | velocity |
| Newton's second law | force |
| equation for force | F=ma |
| equation for velocity | v=d/t |
| equation for acceleration | a=(vf-vo)/t |
| Newton's third law | action/reaction |
| equation for momentum | p=mv |
| equation for power | P=work/t or P=Fd/t |
| when dividing fractions, you must ____ the second fraction then multiply. | invert |
| when adding fractions, you must first find a _____ ______. | common denominator |
| to multiply fractions, simply _____ numerators and denominators. | multiply |
| to convert a fraction into a decimal, _____ the numerator _____ the denominator. | divide, by |
| measurement unit used to calculate radiation intensity in the air. | Roentgen |
| absorbed dose measurement unit. | rad |
| measurement unit used to calculate occupational exposure. | rem |
| measurement unit used to calculate radioactivity. | curie |
| SI equivalent of the R. | air kerma or Gray in air |
| SI equivalent of the rad. | gray |
| SI equivalent of the rem. | Seivert |
| SI equivalent of the curie. | becquerel |
| any quantum of electromagnetic radiation. it has no mass and no charge. | photon |
| positively charged beta particle. | positron |
| nuetrons and protons | nucleon |
| arrangement of all known elements into rows and columns. the rows relate to the number of electron shells present; the columns relate to the number of electrons in the outermost shell. | periodic table |
| time required to reduce radioactivity to half its original value. | radioactive half-life |
| innermost electron shell | K shell |
| the nucleus of a helium atom- 2 neutrons and 2 protons. | alpha particle |
| atoms that have the same atomic number but different atomic mass numbers. | isotope |
| atomic nuclei that have the same atomic mass but different atomic numbers. | isobar |
| atoms that have the same number of neutrons but different number of protons. | isotone |
| atoms that have the same atomic number and the same atomic mass number. | isomer |
| the force that keeps an electron in orbit. | centripetal force |
| no outer shell can contain more than __ electrons. | 8 |
| in the equation 2n^2, n represents what? | shell number |
| in a normal state, atoms possess this charge. | 0 |
| the smallest particle that has all of the properties of an element. | atom |
| the number of protons in an atom. | atomic number |
| the number of protons and the number of neutrons in an atom. | atomic mass number |
| symbol for atomic number | Z |
| symbol for atomic mass | A |
| atoms of various elements combine to form this. | molecule |
| any quantity of one type of molecule | compound |
| the smallest particle of a compound | molecule |
| an electron emitted from the nucleus of a radioactive atom. | beta particle |
| for what is Mendeleev remembered? | periodic table |
| who developed the concept of the atom as a miniature solar system? | Neils Bohr |
| list the fundamental particles within an atom. | electron, protons, neutrons |
| unit of measurement for velocity | m/s |
| unit of measurement for acceleration | m/s2 |
| unit of measurement for force | N |
| unit of measurement for weight | N or lb |
| unit of measurement for momentum | kgxm/s |
| unit of measurement for work | J |
| unit of measurement for power | J/s or W |
| unit of measurement for energy (kinetic or potential) | J |
| fundamental building block of matter | atom |
| what group would the element Lithium (z=3) be in? | I |
| What period would the element Sodium (z=11) be in? | 3 |
| define kinetic energy | object in motion |
| define potential energy | energy by virtue of position |
| define ionization | removal of an electron from an orbital shell |
| Thomas Edison's assistant | Clarence Daly |
| What year did the first person die from overexposure to radiation? | 1904 |
| contribution of Greeks to atomic theory | 4 elements made up everything: earth air fire water; came up with the name ATOM |
| contribution of Dalton to atomic theory | hook and eye |
| contribution of Thompson to atomic theory | Plum pudding model |
| contribution of Rutherford to atomic theory | electron cloud model |
| each shell in an atom has a different _____. | binding energy |
Created by:
1438932103
Popular Physics sets