Unit terms used in radiology
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each of the black spaces below before clicking
on it to display the answer.
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| Physics | Branch of science dealing with matter and energy & their relation to each other.
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| Radiologic Physics | Physics pertaining to origin, nature & behavior of X-rays
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| Science | Systematic classification of facts
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| Scientific Method | Clarification of facts, study of their relationship & drawing of valid conclusion
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| Laws | Based on human experience, watching natural phenomena
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| Theory | Unified concepts of laws underlying certain natural phenomena.
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| Units | Quantity adoped as standard of measurement
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| Fundamental units | Mass, Length, Time (MALT)
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| Metric system | Used internationally; replaces SI system
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| Meter | Originally defined as distance between 2 scratches on bar of platinum
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| One Angstrom equals | 1/100 million
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| One Inch equals | 2.54 cm
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| Mass | Quantity of matter in a body
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| Weighing | Force with which the earth attracts the body at some given location
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| Kilogram | Weight of standard peice of platinum-iridium
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| Time | Measure of duration of events.
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| Second | Standard unit of time, defined as 1/86,400 of a mean solar day
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| Area | Measure of a given surface
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| Volume | Measure of capacity of a container.
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| Density | Mass per unit volume of a substance
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| Specific Gravity | Has no units; is ratio of any material to density of water.
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| Velocity | Speed in given direction.
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| Temperature | Measure of average energy of motion of molecules of matter.
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| Celsius Freezing Point | Zero
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| Celsius Boiling Point | 100
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| Fahrenheit Freezing Point | 32
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| Fahrenheit Boiling Point | 212
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| C to F Formula | 9/5 (C) + 32
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| F to C Formula | 5/9 (F - 32)
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