States of Matter (CH3)
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12 terms
Terms | Definitions |
|---|---|
 fluid | a nonsolid state of matter in which the atoms or molecules are free to move past each other, as in a gas or liquid |
| plasma | a state of matter that consists of free-moving ions and electrons |
| energy | (physics) the capacity of a physical system to do work |
| thermal energy | the total kinetic and potential energy of all the particles in a substance. |
| evaporation | the change of a substance from a liquid to a gas |
| sublimation | a change directly from the solid to the gaseous state without becoming liquid |
| condensation | the process of changing from a gaseous to a liquid or solid state |
| pressure | the force applied to a unit area of surface |
| pascal | a unit of pressure equal to one newton per square meter |
| buoyant force | the upward force that keeps an object immersed in or floating on a liquid |
| viscosity | the resistance of a gas or liquid to flow |
| gas laws | the laws that state the mathematical relationships between the volume, temperature, pressure, and quantity of a gas |
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