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| in physical science, a state of matter that starts as a gas and then becomes ionized; it consists of free-moving ions and electrons, it takes on an electric charge, and its properties differ from those of a solid, liquid, or gas |
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| the kinetic energy of a substance's atoms |
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| the change of state from a liquid to a gas |
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| the process in which a solid changes directly into a gas (the term is sometimes also used for the reverse process) |
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| the change of state from a gas to a liquid |
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| a nonsolid state of matter in which the atoms or molecules are free to move past each other, as in a gas or liquid |
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| the upward force that keeps an object immersed in or floating on a liquid |
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| the amount of force exerted per unit area of a surface |
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| the principle that states that the buoyant force on an object in a fluid is an upward force equal to the weight of the volume of fluid that the object displaces |
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| the SI unit of pressure; equal to the force of 1 N exerted over an area of 1 m2 (symbol, Pa) |
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| the principle that states that a fluid in equilibrium contained in a vessel exerts a pressure of equal intensity in all directions |
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| the resistance of a gas or liquid to flow |
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| the law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as the pressure of the gas decreases and the volume of the gas decreases as the pressure of the gas increases |
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| 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 and the volume of the gas decreases as the temperature of the gas decreases |
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| the law that states that the volume occupied by a gas at a constant pressure is directly proportional to the absolute temperature |
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