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Science vocab

Chap. 3

QuestionAnswer
Pressure is equal to the force exerted on a surface divided by the total area over which the force is exerted
Pascal a unit of pressure : (Pa): 1 N/m2 = 1 Pa.
Fluid a material that can easily flow
Barometer an instrument you can use to measure atmospheric pressure
Buoyant Force water and other fluids exert an upward force that acts on a submerged object
Archimedes Principle states that the buoyant force acting on an object is equal to the weight of the fluid the object displaced
Density mass per unit volume
Pascal's Principle when force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid
Hydraulic System a system that uses liquids to transmit pressure to a confined fluid
Bernoulli's Principle states that the faster a fluid moves, the less pressure the fluid exerts
Lift an upward force
Created by: hulrick
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