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23 Cards in this Set
- Front
- Back
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pressure
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amount of force exerted per unit area of a surface
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pascal
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SI unit of pressure, equal to the force of 1 N exerted over an area of 1 m2 (symbol, Pa)
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buoyant force
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upward force that keeps an object immersed in or floating on a fluid
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Archimedes' Principle
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buoyant force on an object in a fluid is an upward force equal to the weight of the fluid that the object displaces
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Pascal's Principle
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change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of the fluid
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hydraulic devices
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use liquids to transmit pressure from one point to another
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viscosity
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resistance of a gas or liquid to flow
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Bernoulli's Principle
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as the speed of a moving fluid increases, the pressure of the moving fluid decreases
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kinetic theory of matter (2 rules of speed)
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the higher the temp of the substance is the faster the particles move..
at the same temp, more massive particles move slower than less massive ones |
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fluid
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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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plasma
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state of matter that consists of free moving ions and electrons
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ionized
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electrically charged
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energy
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capacity to do work
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kinetic energy
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energy of motion
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temperature
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measure of how lot/cold something is, specifically a measure of the average kinetic energy of the particles in an object
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thermal energy
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total kinetic energy of a substance's atoms
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evaporation
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change of state from liquid to gas
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sublimation
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process in which a solid changes directly into a gas
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condensation
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change of state from gas to a liquid
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melting
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change of state from solid to lquid
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freezing
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change of state from liquid to a solid
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Law of Conservation of Mass
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mass cannot be created or destroyed
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Law of Conservation of Energy
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energy cannot be created or destroyed
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