Fluids and Fluids and PressurePressure

By: By: BenBen Visnesky,Visnesky, Jade Jade Schweitzer,Schweitzer, RandyRandy Smith,Smith, and and

Dimitri Dimitri ErmakovErmakov

Types of PressureTypes of Pressure Air Pressure- The pressure exerted by the atmosphereAir Pressure- The pressure exerted by the atmosphere Gas Pressure- The pressure exerted by gasGas Pressure- The pressure exerted by gas Fluid Pressure- The pressure at some point within a fluid. Such as Fluid Pressure- The pressure at some point within a fluid. Such as

water or air.water or air. Oil Pressure- Pressure that keeps oil on the moving parts of an Oil Pressure- Pressure that keeps oil on the moving parts of an

internal-combustion engineinternal-combustion engine Pressure is also found in food and car brakesPressure is also found in food and car brakes

Types of FluidsTypes of Fluids

Fluid BrakesFluid Brakes Gas FluidsGas Fluids Body FluidsBody Fluids Oil FluidsOil Fluids Incompressible FluidsIncompressible Fluids Slightly Compressible FluidsSlightly Compressible Fluids Compressible FluidsCompressible Fluids Newtonian FluidNewtonian Fluid

Definition of PressureDefinition of Pressure

A pressure is the continuous physical A pressure is the continuous physical force exerted on or against an object force exerted on or against an object by something in contact with it.by something in contact with it.

Definition of fluidDefinition of fluid

A fluid is a substance that cannot A fluid is a substance that cannot maintain its own shape but takes the maintain its own shape but takes the shape of its container.shape of its container.

Equations for PressureEquations for Pressure

Pressure Eqauation: P=Force/Area=F/APressure Eqauation: P=Force/Area=F/A Force=Pressure x AreaForce=Pressure x Area Area= Force/PressureArea= Force/Pressure

Equations For FluidsEquations For Fluids

P=pRuT/MP=pRuT/M Dp/Dt=0Dp/Dt=0

The SI Unit for PressureThe SI Unit for Pressure

Pascal (PA) equal to one Newton per Pascal (PA) equal to one Newton per square metersquare meter

FluidFluid

liquid = Fluid = waterliquid = Fluid = water

BrakesBrakes You ( the driver of the car) You ( the driver of the car)

apply little pressure to the apply little pressure to the pedal and the brake fluid in pedal and the brake fluid in

the line increases the the line increases the pressure, then the pressure is pressure, then the pressure is

transferred to the brakes to transferred to the brakes to

slow down the carslow down the car

Examples of FluidsExamples of Fluids

Liquids- water and oilLiquids- water and oil Gases- oxygenGases- oxygen

Density and PressureDensity and Pressure

Fluids with a greater density will exert a Fluids with a greater density will exert a greater pressuregreater pressure

Pascal’s Principle Pascal’s Principle

A change in pressure at any point in an A change in pressure at any point in an enclosed fluid will be transmitted equally to enclosed fluid will be transmitted equally to all parts of the fluidall parts of the fluid

Examples of Pressure in FluidsExamples of Pressure in Fluids

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