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ILS Ch 13

Pressure force /area, measured in pascals
1N/m2 1Pa
Fluid pressure increases with depth, depends on the type of fluid
Fluid any liquid or gas, can not compress a liquid
Atmospheric pressure caused by weight of atmosphere above a location, sea level =101 kPa
Pascal’s principal change in pressure of a fluid is transmitted equally in all directions
Hydraulics multiply force, based on Pascal’s Principal, diagram, fluid pressure is constant
Bernoulli’s Principal as the speed of a fluid increases, pressure decreases, diagram
Lift upward force on a wing, air above the wing moves faster than the air below
Buoyant force upward force on an object in a fluid, strength depends on volume, equals the weight of the fluid displaced by the object, causes loss of weight
Archimedes Principal buoyant force equals weight of fluid displaced by an object
Sink density of object is greater than density of fluid, weight is greater than buoyant force
Float density of object is less than the density of the fluid
Air pressure decreases with altitude
Density – determines if an objects sinks or floats
Area – length x width, m2
Diagram of spheres
Created by: evroman