Exploring Creation With Physical Science: Glossary
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Created by:
snydercrew on December 15, 2011
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11 terms
Terms | Definitions |
|---|---|
 absolute humidity | the mass of water vapor contained in a certain volume of air |
| absolute magnitude | the brightness of a star, corrected for distance, on a scale of -8 to +19. The smaller the star, the brighter the star |
| acceleration | the time rate of change of an object's velocity |
| additive primary colors | the colors red, green, and blue, which can be added in different proportions to form any other color |
| adiabatic cooling | the cooling of a gas that happens to when the gas expands with no way of getting more energy |
| air mass | a large body of air with relatively uniform pressure, temperature, and humidity |
| air resistance | friction between an object and the molecules of air through which it moves |
| alpha decay | the process by which a radioactive isotope changes by emitting a 4He nucleus |
| aphelion | the point at which the earth is farthest from the sun |
| apparent magnitude | the brightness of a star as seen in the night sky. The smaller the number, the brighter the star |
| asteroid belt | a band of asteroids that orbit the sun between the orbits of Mars and Jupiter |
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