fluids and solubility

Question 1

fluid

Answer 1

a material that has the ability to flow

Question 2

hydrostatics

Answer 2

study of fluids that are not moving

Question 3

hydrodynamics

Answer 3

study of fluids in motion

Question 4

specific gravity

Answer 4

ratio of an object’s density of water. either greater than 1 or less than one

Question 5

pressure =

Answer 5

force/area

Question 6

pressure in a fluid =

Answer 6

density x acceleration due to gravity x height

Question 7

at the same depth in a fluid,

Answer 7

the fluid exerts the same pressure and in all directions

Question 8

pascal’s principle

Answer 8

the pressure applied to a confined fluid increases the pressure throughout the fluid by the same amount

Question 9

archimedes principal

Answer 9

an object in a fluid (floating or immersed) feels a buoyant force equal to the weight of the fluid displaced

Question 10

if the density of the object is greater than the density of the fluid, it will

Answer 10

sink

Question 11

if the density of the object is less than the density of the fluid it will

Answer 11

float

Question 12

if the object sinks, the buyant force is _____ than the true weight of the object

Answer 12

less

Question 13

if the object floats, the buyout force is ___ than the true weight of the object

Answer 13

greater

Question 14

a hydrometer measures

Answer 14

specific gravity

Question 15

flow rates

Answer 15

the volume of fluid passning a particular point per unit time

Question 16

velocity

Answer 16

displacemet/time . the rate of change of position. the rate of change of velocity is referred to as acceleration

Question 17

bernoulli’s principle

Answer 17

the faster a fluid flows, the less pressure it exerts

Question 18

viscosity

Answer 18

measure of a fluid’s resistance to flow. a measure of the resistance of a fluid to deform under shear stress. it is commonly perceived as thickness or resistance to pouring

Question 19

laminar flow

Answer 19

fluids move without internal turbulences

Question 20

Reynolds number….?

Answer 20

for a given liquid and tube there is a critical flow rate above which the flow will become turbulent

Question 21

poiseuille’s theorem

Answer 21

the flow rate for a fluid thru a tube depends on radius , length, pressure difference, viscosity of the fluid

Question 22

surface tension

Answer 22

the force per unit length acting across any line in the surface and tending to pull the surface apart across the lines

Question 23

Poiseulle determined that the laminar flow rate of an incompressible fluid along a pipe is proportional to

Answer 23

the fourth power of the pipe’s radius.

Question 24

venturi effect

Answer 24

the fluid pressure that results when an incompressible fluid flows through a constricted section of pipe

Question 25

reynolds number is ___ proportional to density

Answer 25

directly

Question 26

reynolds number is ___ proportional to viscosity

Answer 26

inversely

Question 27

reynolds number is ____ proportional to radius of tube

Answer 27

directly

Question 28

pressure at a given depth is independent go

Answer 28

container shape

Question 29

archimedes principal

Answer 29

an object immersed either totally or partially in a fluid feels a buoyant force equal to the weight of the fluid displaced