phase change vocab
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Created by:
liv2laugh328 on April 24, 2012
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24 terms
Terms | Definitions |
|---|---|
 matter | anything that has mass and volume |
| mass | the amount of matter in an object |
| weight | the response of mass on the pull of gravity |
| gravity | the force of attraction between two objects |
| density | mass in a certain amount of volume (d=m/v) |
| 4 states off matter | solid, liquid, gas, plasma |
| solids | low energy particles/definite shape and definite volume |
| types of solids | crystalline solids, noncrystalline solids |
| amorphous | having no form |
| liquids | moderate energy particles/no definite shape and definite volume |
| gases | high energy particles/no definite shape and no definite volume |
| plasma | positively and negatively charged particles/no definite shape and no definite volume |
| solid to liquid | melting |
| solid to gas | sublimation |
| sublimation | when a solid changes directly into the gas stage without going through the liquid phase |
| liquid to gas | vaporization |
| liquid to solid | freezing |
| gas to liquid | condensation |
| evaporation | vaporization only on the surface |
| heat of fusion | amount of heat needed to change a solid to a liquid |
| melting point | temperature at which a solid changes to a liquid |
| freezing point | temperature at which a liquid changes to a solid |
| boiling point | temperature at which a liquid changes to a gas |
| heat of vaporization | amount of energy needed to change a liquid to a gas |
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