Module 1 Flashcards

1
Q

It is the branch of science which deals with the study of the behavior of fluids (gas or liquid).

A

Fluid Mechanics

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2
Q

It is any substance that can flow, either a liquid or a gas.

A

Fluid

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3
Q

It is the study of fluids at rest or equilibrium situations.

A

Fluid Statics

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4
Q

It is the study of fluids in motion.

A

Fluid Dynamics

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5
Q

It is defined as mass per unit volume.

A

Density (rho, ρ)

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6
Q

What is the formula for density?

A

density = mass (kg) / volume (m^3) | ρ = m/V

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7
Q

What is the density of water?

A

1.00 x 10^3 kg/m^3

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8
Q

What is the density of salt water?

A

1.03 x 10^3 kg/m^3

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9
Q

The _________________ of a material is the ratio of its density to the density of water (1000 kg/m^3)

A

Relative Density

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10
Q

It is the amount of force exerted on a given area.

A

Pressure

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11
Q

Its SI unit is Pascal (Pa).

A

Pressure

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12
Q

What is the formula for pressure?

A

pressure (Pa) = Newton (N)/area (m^2) | P = F/A

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13
Q

What is the formula for fluid pressure?

A

fluid pressure = (Pa)(g)(m)| P = ρgh

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14
Q

What is the force exerted on an object in water?

A

Fluid Pressure

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15
Q

The forces exerted by a fluid on the walls are _________.

A

Perpendicular ||

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16
Q

Fluids exert the same pressure in ______ directions.

A

All directions

17
Q

Fluid pressure is ___________ of area and shape of its container.

A

Independent

18
Q

The fluid pressure is _________ proportional to the depth of the fluid and its density.

A

Directly proportional

19
Q

At any particular depth, the fluid pressure is the ________ in all directions.

A

Same in all directions

20
Q

For an open tank, include the pressure outside the tank pressing on the top, which is the ______________.

A

Atmospheric Pressure

21
Q

It states that an external pressure applied to an enclosed fluid is transmitted uniformly throughout the volume of the liquid.

A

Pascal’s Principle

22
Q

The volumes are _________ and the same amount of fluid leaves and enters.

23
Q

Upward force exerted on an object when submerged under water.

A

Buoyant Force

24
Q

An object submerged in fluid experiences a buoyant force __________ to the weight of the fluid displaced.

25
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
26
What is the formula for Buoyant Force?
F_B = (ρ_f)(g)V