Module 1 Flashcards

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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.

A

equal

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.

A

equal

25
Q

This principle states that the magnitude of the buoyant force on an object always equals the weight of the fluid displaced by the object.

A

Archimedes’ Principle

26
Q

What is the formula for Buoyant Force?

A

F_B = (ρ_f)(g)V