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Chapter 20: Gases Vocabulary
Gases
7
Physics
11th Grade
07/20/2012

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Term
barometer
Definition
An instrument used to measure the pressure of the atmosphere.
Term
aneroid barometer
Definition
An instrument used to measure atmospheric pressure; based on the movement of the lid of a metal box.
Term
Boyle's law
Definition
For a constant number of molecules of gas at constant temperature, the product of pressure and volume is constant.
Term
Bernoulli's principle
Definition
The statement that the pressure in a fluid decreases as the speed of the fluid increases.
Term
streamline
Definition
The smooth path of a small region of fluid in steady flow.
Term
eddy
Definition
Changing, curling paths in turbulent flow of a fluid.
Term
lift
Definition
In application of Bernoulli's principle, the net upward force produced by the different between upward and downward pressures. When lift equals weight, horizontal flight is possible.
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