90 likes | 124 Views
Chapter 14, Section 1 Fluids and Pressure. 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.
E N D
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.