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19 Cards in this Set
- Front
- Back
fluids
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liquids and gases that flow and have no definite shape of their own
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pressure
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the force on a surface, divided by the surface's area
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pascal
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the SI unit of pressure
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combined gas law
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for a fixed amount of an ideal gas, the pressure times the volume, divided by the kelvin temperature, equals a constant
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ideal gas law
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for an ideal gas, the pressure times the volume is equal to the number of molecules, times the constant (R), and the kelvin temperature
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thermal expansion
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a property of all forms of matter that causes the matter to expand, becoming less dense, when heated
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plasma
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a gas-like, fluid state of matter made up of negatively charged electrons and positively charged ions that can conduct electricity
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cohesive forces
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the electromagnetic forces of attraction that like particles exert on one another (responsible for surface tension/viscosity)
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adhesive forces
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the electromagnetic forces of attraction that particles of different substances exert on one another (responsible for capillary action)
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pascals' principle
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states that any change in pressure applied at any point on a confined fluid is transmitted undiminished throughout the fluid
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buoyant force
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the upward force exerted on an object immersed in a liquid
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archimede's principle
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states than an object immersed in a fluid has an upward force on it that equals the weight of the fluid displaced by the object
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bernoulli's principle
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states that as velocity of a fluid increases, the pressure exerted by that fluid increases
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streamlines
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lines representing the flow of fluids around objects
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crystal lattice
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a fixed, regular pattern formed when the temperature of a liquid is lowered
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amorphous solid
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a substance having a definite shape and volume but lacking a regular crystal structure
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coefficient of linear expansion
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the change in length divided by the original length and the change in temperature
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coefficient of volume expansion
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the change in volume divided by the original volume and the change in temperature
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specific gravity
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ratio of the density of water
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