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Chapter Eleven

QuestionAnswer
pressure is equal to the force exerted on a surface divided by the total area over which the force is exerted
pascal unit of pressure per square meter (N/m squared)
fluid is a material that can easily flow
barometer instrument used to measure atmospheric pressure
density mass per unit volume
buoyant force liguids and gases exert an upward force that acts on a submerged object. It acts in the direction opposite to force of gravity
Archimedes' Principle states that the buoyant force acting on a submerged object is eual to the weight of the volume of fluid displaced by the object.
Pascal Principle states that pressure increases by the same amount throughout an enclosed odr confined fluid
Bernoulli's Principle states that the faster a fluid moves, the less pressure the fluid exerts. The speed of a moving fluid increases the pressure exerted by the fluid decreases
lift upward force
hydraulic system uses liquids to transmit pressure and multiply force in a confined fluid.
Created by: gayledains