physics wk 2

Question 1

hydrostatics s the study of

Answer 1

fluids that are not moving

Question 2

hydrodynamics is the study of

Answer 2

fluids in motion

Question 3

a fluid is a material that has the ability to

Answer 3

flow (liquids and gases)

Question 4

Pressure=

Answer 4

force/area

Question 5

at the same depth in fluid, fluid exerts

Answer 5

the same pressure and in all directions

Question 6

What is pascals principle

Answer 6

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

Question 7

Archimedes principle

Answer 7

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

Question 8

hydrometer measures

Answer 8

specific gravity of liquids

Question 9

bernoulli’s principle

Answer 9

as the speed of a fluid increases, the pressure exerted by the fluid decreases.

Question 10

shape of flow pattern in pipe

Answer 10

concave with molecules at wall moving slower

Question 11

poiseulle determined that the laminar flow rate of an incompressible fluid along a pipe is proportional to the ______ power of the pipes radius

Answer 11

fourth

Question 12

poiseulle law yields three ways to increase the fluid flow through an IV

Answer 12

increase size of catheter, shorter length, add pressure bag/raise IV bag height

Question 13

Reynolds number is inversely proportional to

Answer 13

viscosity

Question 14

Reynolds number is proportional to

Answer 14

density, velocity, and tube diameter

Question 15

Specific gravity is

Answer 15

relationship of density related to water

Question 16

1mmHg is equal to cmH2O

Answer 16

1.36cmH2O

Question 17

Atm is equal to lbs per sq in

Answer 17

14.7lbs/in2

Question 18

Flow rate equals

Answer 18

volume/time ex 3L/min

Question 19

a solution is a

Answer 19

homogenous mixture that consists of one or more solutes

Question 20

solvent is

Answer 20

large amount

Question 21

solute

Answer 21

smaller amount than solvent

Question 22

molality is

Answer 22

concentration in terms of moles of solute per kilogram of solvent

Question 23

molarity is

Answer 23

defined as moles of solute per liter of solution

Question 24

molality and molarity are never

Answer 24

equal

Question 25

Supersaturated

Answer 25

a solution contains more solute than allowed by the solubility THIS IS NOT A STABLE SYSTEM

Question 26

lidocaine hydrochloride has an ______ bond, it is readily soluble in _______.

Answer 26

ionic, water

Question 27

as partial pressure increases, solubility

Answer 27

increases

Question 28

Henrys law

Answer 28

the amount of a non reacting gas which dissolves in liquid is DIRECTLY PROPORTIONAL to the partial pressure of the gas, provied the temp remains constant

Question 29

As temperature increases, solubility

Answer 29

decreases

Question 30

a cold patient receiving anesthetic gas solubiltiy _______ and emergence will be _____

Answer 30

increases, longer

Question 31

density=

Answer 31

mass/voume

Question 32

atm= _____ torr and _____ mmHg

Answer 32

760

Question 33

laminar flow is

Answer 33

when a fluid streams through a tube, the particles comprising the fluid may move along lines parallel to the walls of the tube.

Question 34

visocity

Answer 34

Force required to push a plate having specific area at a speed over a layer of liquid of certain thickness.

Question 35

poiseulle law deals with

Answer 35

laminar flow only

Question 36

greater lipid solubility=

Answer 36

greater potency

Question 37

MAC decreases by ____ for every decrease in temp by 1C

Answer 37

2-5%

Question 38

Cardiac output is _______ proportionate to uptake of gas, ______ CO _________ anesthetics delivered to brain

Answer 38

inversely, decreased, increases

Question 39

What is important with local anesthetics with duration of action

Answer 39

protein binding