All Flashcards
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.
What is the effect of increasing depth on hydrostatic pressure?
Increasing depth increases hydrostatic pressure.
What is the effect of increasing fluid density on hydrostatic pressure?
Increasing fluid density increases hydrostatic pressure.
According to Bernoulli's principle, what happens to pressure when fluid velocity increases?
Pressure decreases.
According to Pascal's principle, what happens when force is applied to a small area in a confined fluid?
The pressure is transmitted equally in all directions, creating a larger force on a larger area.
How do you calculate total pressure?
- Calculate gauge pressure: . 2. Determine atmospheric pressure (, usually 1 atm). 3. Add them: .
How do you calculate hydrostatic pressure?
- Identify the fluid density (). 2. Determine the depth () from the surface. 3. Use the formula: .