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Ch. 13
Vocab
18
Physics
12th Grade
03/10/2008

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Cards

Term
fluid
Definition
flows and has no definite shape
Term
pressure
Definition
force divided by surface area
Term
Archimede's Principle
Definition
the magnitude of the buoyant force on an object equals the weight of fluid displaced by the object
Term
plasma
Definition
gas-like state containing electrons and positively charged ions
Term
pascal
Definition
SI standard unit of pressure
Term
combined gas law
Definition
for a fixed amount of ideal gas, the pressure times the volume divided by the Kelvin temp. equals a constant
Term
crystal lattice
Definition
fixed pattern of particles within a solid
Term
ideal gas law
Definition
can be expressed with PV=nRT
Term
buoyant force
Definition
upward force on an object immersed in a liquid
Term
Bernoulli's priniciple
Definition
as the velocity of a fluid increases, the pressure exerted by the fluid decreases
Term
thermal expansion
Definition
when an increase in temp produces an increase in the volume of matter and a decrease in density
Term
Cohesive forces
Definition
electromagnetic attractions of particles within a substance for one another
Term
coefficient of linear expansion
Definition
equal to the change in length divded by the original length and the change in temp.
Term
Pascal's Principle
Definition
a change in pressure at any point on a confined fluid is transmitted undiminished through the fluid
Term
adhesive forces
Definition
attractive forces between particles of different substances
Term
amorphous solid
Definition
substance with definite volume and shape but no regular crystal structure
Term
streamlines
Definition
representations of the flow of fluids around objects
Term
coefficient of volume expansion
Definition
equal to the change in volume divided by the original volume and the change in temperature
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