Fluid Mechanics – Pressure, Buoyancy & Flow Explained | Chapter 12 of University Physics
Fluid Mechanics – Pressure, Buoyancy & Flow Explained | Chapter 12 of University Physics Chapter 12 of University Physics explores how fluids behave at rest and in motion. You’ll learn how density defines fluid mass, how pressure varies with depth, why objects float or sink, and how incompressible fluids obey continuity and Bernoulli’s equations. These principles underpin applications from submarines to blood flow. Watch the full video summary for real-world examples and problem walkthroughs. Fluid Properties & Density Fluids include liquids and gases, distinguished by their ability to flow and conform to containers. Density (ρ = m/V) measures mass per unit volume and varies with temperature and pressure. Specific gravity compares a fluid’s density to water, offering a dimensionless way to gauge buoyancy potential. Pressure in a Fluid Pressure (p = F/A) quantifies force per area in pascals (Pa). In a static fluid, pressure increases with depth: p = p₀ + ρgh. Pas...