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RAD106_week 4
| Question | Answer |
|---|---|
| ____________ is the transfer of energy | Radiation |
| Radiology emerged as a medical specialty because of the _________ transformer and the __________ x-ray tube. | Snook; Coolidge |
| Which type of energy is the energy released by a chemical reaction? | Chemical Energy |
| Ionization is the removal of a(n) _________________ from an atom | Electron |
| Which of the following is the largest source of human-made radiation? | x-rays |
| The biggest source of man-made ionizing radiation exposure to the public is ______________. | Diagnostic xrays |
| Computed tomography was developed in the ________. | 1970s |
| Ice and steam are examples of two forms of ___________. | Matter |
| Radio waves, light, and x-rays are all examples of _________ energy. | Electromagnetic |
| Matter is measured in ___________. | Kilograms |
| ___________ is a special quantity of radiologic science. | Radioactivity |
| Mass is the quantity of matter as described by its ______. | energy equivalence |
| A moving object has ____________ energy | Kinetic |
| Filtration is used to ____________________. | Absorb low-energy (weak) x-rays |
| What is the removal of an electron from an atom called? | Ionization |
| The formula E = mc2 is the basis for the theory that led to the development of __________. | Nuclear Power |
| Atoms and molecules are the fundamental building blocks of ___________. | Matter |
| In the United States, we are exposed to _________ mSv/year of ionizing radiation from the natural environment. | 0-5 mSv |
| X-rays have a velocity of 300,000,000 m/s. Express this in exponential form. | 3.0 x 10(8th) |
| Which of the following is Newton’s first law of motion? | A body at rest will remain at rest and a body in motion will continue in motion with constant velocity unless acted on by an external force. |
| Which of the following is Newton’s third law of motion? | For every action, there is an equal and opposite reaction |
| Thermal radiation is the transfer of heat by the emission of ___________________. | Infrared radiation |
| Which of the following are special quantities used in radiologic science? | Exposure, dose, effective dose |
| Which of the following is the SI unit for power? | Joule/second |
| Which of the following states the law of conservation of energy? | Energy may be transformed from one form to another, but it cannot be created or destroyed. |
| Which units are considered base quantities? | mass, length, time |
| What are the two cryogens used in Magnetic resonance imaging with a superconducting magnet? | liquid helium; liquid nitrogen |
| Which of the following explains the difference between speed and velocity? | One involves acceleration and the other does not |
| The transfer of heat by the emission of infrared radiation is ________________. | Thermal radiation |
| Mass density should be reported in which units? | kilograms per cubic meter (kg/m3 |
| What heat transfer takes place when water is boiled? | Convection |
| Exposure is measured in units of ___________. | grays |
| What heat transfer takes place when you burn your finger by touching a hot iron? | Conduction |
| Work is the product of ________________ and distance. | Force |
| The SI unit of velocity is _____________________. | Meters per second |
Created by:
jetsetjes