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Ch. 3 Holt
States of Matter
| Term | Definition |
|---|---|
| plasma | a state of matter that starts as a gas and then becomes ionized |
| energy | the capacity to do work |
| thermal energy | the kinetic energy of a substance's atoms |
| evaporation | the change of a substance from a liquid to a gas |
| sublimation | the process in which a solid changes directly into a gas |
| condensation | the change of a substance from a gas to a liquid |
| fluid | a non-solid state of matter in which the atoms or molecules are free to move past each other as in a gas or liquid |
| buoyant force | the upward force exerted on an object immersed in or floating on a fluid |
| pressure | the amount of force exerted per unit area of a surface |
| Archimedes principle | the principle that states that the buoyant force on an object in a fluid is an upward force equal to weight of the volume of a fluid that the object displaces |
| pascal | the SI unit of a pressure equal to the force of 1 N exerted over an area of 1 m sq. |
| viscosity | the resistance of a gas or liquid to flow |
| Boyle's law | the law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as the pressure decreases and the volume of the gas decreases as the pressure of the gas increases. |
| charles law | the law that states that for a fixed amount of gas at a constant pressure the volume of the gas increases as the temperature of the gas increases |
Created by:
haasem
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