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### 17 Cards in this Set

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 Fluid Pressure All forces exerted by the individual molecules in a fluid that add together to make up the pressure exerted Bernoulli's Principle States that the pressure exerted by a moving stream a fluid is less that the pressure of a surrounding fluid SI unit of Pressure Pascal PA or newton per square meter(N/m) Pascal's Principal When a force is applied to a confined fluid, an increase in pressure is transmitted equall to all parts of the fluid fluid a substance whose shape can easily be change Buoyancy water exerts force called the buoyance force, this acts in the upward direction, against the force of the gravity, so it makes it feel lighter Calculating Pressure pressure= Force Area Archimedes Principle States that the buoyant force on an object is equal to the weight of the fluid displaced by the object Pressure/Fluid The pressure within a fluid is the same at any given level an exerted in all directions Pascal's Principal When force is applied to confined fluid, an increase in pressure is transmitted equally to all parts of the fluid Pressure and Elevation air pressure decreases as elevation increases Density Density= Mass Volume Hydraulic System Multiplies a force by applying the force to a small surfce area. the increase in pressure is then transmitted to another part of a confined fluid, which pushes on a larger surface area Densities of substances Change the density of a substance can make it float oer sink pressure exerted by a fluid all the forces exerted by the individual molecules in a fluid add together to make up the pressure exerted by the fluid Pressure and Depth Fluid pressure depends on depth. Water pressure increases as depth increases. Sinking / Floating An object that is more dense that the fluid which it is immeresed sinks. An object that is less dense that the fluid which it is immersed floats to the surface.