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23 Cards in this Set
- Front
- Back
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what are the two rules of speed in the kinetic theory of matter?
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1. higher temp, faster particles
2. same temp, more massive particles- slower less massive-faster |
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the nonsolid state of matter in which the atoms or molecules are free to move or flow past each other, as in a gas or liquid
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fluid
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a state of matter that consists of free moving ions and electrons
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plasma
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electrically charged
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ionized
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the capacity to do work
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energy
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energy of motion; average temp
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kinetic energy
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a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object
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temperature
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the total kinetic energy of a substance's atoms
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thermal energy
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liquid --> gas
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evaporation
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solid --> gas
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sublimation
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gas --> liquid
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condensation
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solid --> liquid
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melting
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liquid --> solid
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freezing
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mass cant be created or destoyed
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law of conservation of mass
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energy cant be created or destoyed
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law of conservation of energy
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amount of force exerted per unit area of a surface
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pressure
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the SI unit of pressure; equal to the force of 1 N exerted over an area of 1m^2 (symbol, Pa)
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pascal
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the upward force that keeps an object immersed in or floating on a fluid
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buoyant force
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the buoyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object displaces
(buoyant force= weight of displaced water) |
archimedes principle
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a change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of the fluid
(pressure changes--> equally given to all parts) |
pascals principle
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use liquids to transmit pressure from one point to another
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hydraulic devices
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the resistance of a gas or liquid to flow
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viscosity
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as the speed of a moving fluid increases, the pressure of the moving fluid decreases
(higher speed-->less pressure) |
bernoullis principle
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