S2+Forces+in+Fluids


 * Notes**


 * 13.1 Fluid Pressure**

__Objectives__:

1. Describe and calculate pressure. 2. Identify appropriate SI units for measuring pressure. 3. Describe the relationship between water depth and the pressure it exerts. 4. Describe how forces from pressure are distributed at a given level in a fluid. 5. Explain how altitude affects air pressure.


 * 13.2 Forces and Pressure in Fluids**

__Objectives__:

1. Describe how pressure is transmitted in a fluid according to Pascal's principle. 2. Explain how a hydraulic system works to change a force. 3. Explain how the speed and pressure of a fluid are related according to Bernoulli's principle.


 * 13.3 Buoyancy**

__Objectives__:

1. Explain the effect of buoyancy on the apparent weight of an object. 2. Explain the relationship between the volume of fluid displaced by an object and buoyant force acting on the object according to Archimedes' principle. 3. Describe the relationship among object density, fluid density, and whether an object sinks or floats in a fluid. 4. Describe the relationship among object weight, buoyant force, and whether an object sinks or floats in a fluid.