1. Wednesday 6/17 PHYS 2010 Nathalie Hoffmann University of Utah

2. Fluids Fluids can flow and take the shape of their container, because their molecules can move freely with respect to each other and are not tied to fixed locations. Liquids: maintain their volume, stronger attractive forces between molecules, incompressible fluids Gases: fill the volume available to them, weak attractive forces between molecules, compressible fluids

3. Density

4. Pressure

5. Fluid Depth In a fluid at rest, pressure increases with depth, e.g. ocean, atmosphere

6. Hydrostatic Equilibrium

7. Hydrostatic Equilibrium Equation

8. Equation of Continuity

9. Units SI: [Pa] = [N/m 2 ] (pascals) Others: [atm] (atmospheres) - 1.01325 × 10 5 Pa [mmHg] (millimetres of mercury) [torr] Etc.