What is the difference between gauge pressure and absolute pressure?
Gauge Pressure: Pressure relative to atmospheric pressure. Absolute Pressure: Total pressure, including atmospheric pressure.
Compare and contrast hydrostatic pressure and dynamic pressure.
Hydrostatic Pressure: Pressure due to the weight of a fluid at rest. Dynamic Pressure: Pressure due to the motion of a fluid.
How do you calculate total pressure?
1. Calculate gauge pressure: $P_{gauge} = \rho gh$. 2. Determine atmospheric pressure ($P_{atm}$, usually 1 atm). 3. Add them: $P_{total} = P_{gauge} + P_{atm}$.
How do you calculate hydrostatic pressure?
1. Identify the fluid density ($\rho$). 2. Determine the depth ($h$) from the surface. 3. Use the formula: $P = \rho gh$.
Define pressure.
Pressure is the force distributed over an area; the ratio of force to perpendicular area.
What is hydrostatic pressure?
Pressure exerted by a fluid on a submerged object, due to the weight of the fluid above it.
Define gauge pressure.
The pressure due to the fluid itself ($\rho gh$).
What is absolute pressure?
The sum of gauge pressure and atmospheric pressure.
State Pascal's Principle.
Pressure applied to a confined fluid is transmitted equally in all directions.
Define dynamic pressure.
The pressure due to the fluid's motion, given by $\frac{1}{2} \rho v^2$.
