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Flashcards on Fluid Mechanics
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What is fluid mechanics?
The branch of physics that studies the mechanics of fluids.
What are the two main divisions of fluid mechanics?
Fluid statics and fluid dynamics.
What is fluid statics?
The study of fluids at rest.
What is fluid dynamics?
The study of fluids in motion.
What is viscosity?
A measure of a fluid's resistance to flow.
What is Pascal's law?
Pressure applied to a fluid in a confined space is transmitted equally in all directions.
What is Bernoulli's principle?
As the speed of a fluid increases, its pressure decreases.
What is Archimedes' principle?
An object immersed in a fluid experiences an upward buoyant force equal to the weight of the displaced fluid.
What is Reynolds number?
A dimensionless quantity used to predict the flow regime of a fluid.
What is the equation for continuity of fluid flow?
A1V1 = A2V2 (where A is the cross-sectional area and V is the velocity).
What is the equation for pressure in a fluid?
P = ρgh (where P is pressure, ρ is density, g is acceleration due to gravity, and h is height).
What is the equation for Pascal's law?
F1/A1 = F2/A2 (where F is force and A is area).
What is the principle of conservation of mass?
Mass can neither be created nor destroyed.
What is the principle of conservation of energy in fluid mechanics?
The total energy of a fluid flowing along a streamline remains constant.
What are laminar and turbulent flows?
Laminar flow is smooth and orderly, while turbulent flow is chaotic and irregular.
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Test Your Knowledge
Which branch of physics studies the mechanics of fluids?
Fluid Mechanics
Thermodynamics
Electromagnetism
Particle Physics
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What is the measure of a fluid's resistance to flow?
Gravity
Friction
Viscosity
Adhesion
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Which principle states that pressure applied to a fluid in a confined space is transmitted equally in all directions?
Bernoulli's principle
Pascal's law
Archimedes' principle
Newton's laws of motion
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What is the equation for the principle of continuity of fluid flow?
F = ma
A1V1 = A2V2
E = mc^2
E = 1/2 mv^2
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According to Bernoulli's principle, as the speed of a fluid increases, what happens to its pressure?
It decreases
It increases
It remains constant
It fluctuates
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What is the principle that states an object immersed in a fluid experiences an upward buoyant force equal to the weight of the displaced fluid?
Pascal's law
Bernoulli's principle
Archimedes' principle
Conservation of energy
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What does Reynolds number predict in fluid flow?
Fluid pressure
Flow regime
Fluid temperature
Fluid viscosity
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Which equation represents the pressure in a fluid?
P = F/A
P = mv
P = ρg
P = ρgh
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According to the principle of conservation of mass, mass can be:
Created
Destroyed
Neither created nor destroyed
Transformed into energy
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What is the principle of conservation of energy in fluid mechanics?
Energy is created in fluid flow
Energy is destroyed in fluid flow
Total energy along a streamline remains constant
Energy is conserved only in laminar flow
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