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Explore the dynamics of fluids and pressure, covering formulas, atmospheric pressure, density, and fluid flow. Learn how fluids exert pressure and the impact of pressure differences on fluid behavior.
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All Fluids Exert Pressure • Fluids include liquids and gases. • Pressure is the amount of force exerted on a given area.
The Formula of Force • Pressure = Force / Area • Force = Pressure x Area • The SI unit is the pascal (pa)
Pressure and Bubbles • Fluids exert a push out in all directions. • This makes a round shape.
Atmospheric Pressure • The atmosphere is the layer of gases that surrounds the Earth. • This layer causes a pressure called Atmospheric pressure.
Density and Water Pressure • Pressure depends on the depth of the fluid. Lower depth = more pressure • Water and air combine to exert pressure.
Pressure Differences and Fluid Flow • Fluids flow from regions of high pressure to regions of low pressure. • Example: breathing, drinking through a straw, tornadoes, etc.