Module 1 Flashcards
It is the branch of science which deals with the study of the behavior of fluids (gas or liquid).
Fluid Mechanics
It is any substance that can flow, either a liquid or a gas.
Fluid
It is the study of fluids at rest or equilibrium situations.
Fluid Statics
It is the study of fluids in motion.
Fluid Dynamics
It is defined as mass per unit volume.
Density (rho, ρ)
What is the formula for density?
density = mass (kg) / volume (m^3) | ρ = m/V
What is the density of water?
1.00 x 10^3 kg/m^3
What is the density of salt water?
1.03 x 10^3 kg/m^3
The _________________ of a material is the ratio of its density to the density of water (1000 kg/m^3)
Relative Density
It is the amount of force exerted on a given area.
Pressure
Its SI unit is Pascal (Pa).
Pressure
What is the formula for pressure?
pressure (Pa) = Newton (N)/area (m^2) | P = F/A
What is the formula for fluid pressure?
fluid pressure = (Pa)(g)(m)| P = ρgh
What is the force exerted on an object in water?
Fluid Pressure
The forces exerted by a fluid on the walls are _________.
Perpendicular ||
Fluids exert the same pressure in ______ directions.
All directions
Fluid pressure is ___________ of area and shape of its container.
Independent
The fluid pressure is _________ proportional to the depth of the fluid and its density.
Directly proportional
At any particular depth, the fluid pressure is the ________ in all directions.
Same in all directions
For an open tank, include the pressure outside the tank pressing on the top, which is the ______________.
Atmospheric Pressure
It states that an external pressure applied to an enclosed fluid is transmitted uniformly throughout the volume of the liquid.
Pascal’s Principle
The volumes are _________ and the same amount of fluid leaves and enters.
equal
Upward force exerted on an object when submerged under water.
Buoyant Force
An object submerged in fluid experiences a buoyant force __________ to the weight of the fluid displaced.
equal
This principle states that the magnitude of the buoyant force on an object always equals the weight of the fluid displaced by the object.
Archimedes’ Principle
What is the formula for Buoyant Force?
F_B = (ρ_f)(g)V
