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Uworld > Physics Fluid And Gases > Flashcards

Physics Fluid And Gases Flashcards

1
Q

Equation for wave velocity

A

V = frequency * wavelength

as f depends on only heart rate, only wavelength changes when speed changes

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2
Q

Wave period

A

Is

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3
Q

Wavelength image

A
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4
Q

1 Pa equals how many mmHg?

A

0.075 mmHG

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5
Q

List of prefixes

A
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6
Q

Blood vessels structure

A

Artery -> arteriole -> capillary -> venule -> vein

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7
Q

Blood pressure

A
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8
Q

What vascular region is the primary pressure reducing?

A

Arterioles. Reduce the blood pressure from the major arteries ( high blood pressure) to the capillary networks ( low blood pressure )

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9
Q

Refractive index equation

A

n1 sin theta 1 = n2 sin theta 2

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10
Q

Density equation

A

m/V

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11
Q

If a diameter is 20 m then radius is

A

Half of it, 10 m

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12
Q

Pai is equal?

A

3

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13
Q

What is heat?

A

Spontaneous transfer of energy between two regions that have different T

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14
Q

Heat transfer mechanisms

A

Conduction
Convection
Radiation

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15
Q

When air T increases what happens to its density?

A

Decreases

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16
Q

Float or sink

A
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17
Q

Continuity equation

A
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18
Q

Dilation of the blood vessel cause in the blood area and velocity

A

Increase in area but decrease in speed

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19
Q

Free body diagram with friction

A
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20
Q

How blood travels?

A

Through vessels to deliver oxygen and nutrients to tissues and to remove waste products in capillaries.
Blood leaves the heart through the arteries and returns to the heart through the veins

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21
Q

Systolic vs diastolic

A

Maximum - systolic within the arteries
Minimum - diastolic

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22
Q

Fn equals with Ft

A

Fn = Fw - Ft

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23
Q

What is shearing force?

A

Proportional to viscosity times delta v/ delta distance

Larger viscosity, larger shearing force

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24
Q

1 sec is how many Ms?

A

1000 ms

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25
Q

Standard deviation

A
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26
Q

Kinetic energy with Boltzmanns constant

A

KE= 3/2 k T

27
Q

Ideal fluid vs nonideal

A
28
Q

Fundamental harmonic for a pipe open on one end

A

Harmonic wavelength = 4L / n
n is harmonic number

29
Q

Harmonic frequency equation

A

f n = v/ harmonic wavelength = nv/ 4L

30
Q

Magnitude of the component vectors

A

Vx = V cos
Vy = V sin

Parallel cos
Perpendicular sin

31
Q

Doppler shift and velocity

A

If v is positive, moving toward the observer
If v is negative away from the observer

32
Q

Cm to m

A

Cm times 0.01 m

33
Q

How heat transfer from an organism to the environment can be accomplished?

A

Increasing blood flow ( thermal conduction by vasodilation) or by increasing respiration ( increasing conduction and convection)

34
Q

Velocity and pressure relationship

A

As v increases, P decreases

35
Q

Elastic potential energy equation

A

Uel = 1/2 k x^2

36
Q

Mathematical relationship

A
37
Q

Acceleration of charged proteins during electrophoresis

A
38
Q

Electrostatic force equation

A

F = qE
q is charge and E is electric field ( E = voltage / distance)

39
Q

Acceleration from electrostatic force

A

a = Fe/ m
Acceleration increases when distance decreases

40
Q

Farad to mF

A

1 F = 1000 mF

41
Q

Voltage formula

A

V = Q / C
q electric charge in C
C capacitance in F

42
Q

T of matter formula

A

T = KE of each molecule / quantity of molecules

43
Q

Mold heat capacity

A

Amount of heat required to raise the T of 1 mole of a substance by 1 degree Kelvin

Q = n C deltaT
n = moles

Molar heat capacity at constant Pressure exceeds the molar heat capacity of a gas at constant volume

44
Q

Characteristics of an ideal gas

A
45
Q

Relationship between density and volume below surface

A

p object/ p fluid = Vfluid / V object

46
Q

How to calculate fraction of an object above surface?

A

1 - V fluid / V object = 1- p fluid / p object

47
Q

Partial pressure of oxygen

A
48
Q

Increasing respiration rate increases

A

Heat transfer to the environment

49
Q

Pascals law

A

P = F / A

P = P1= P2

50
Q

Osmosis

A

Diffusion of solvent across a semipermeable membrane separating compartments with different solute concentrations

51
Q

Osmotic pressure formula

A

iMRT

52
Q

Starling equation of the net fluid filtration

A
53
Q

Formula of work with pressure and volume

A

W = PV

54
Q

Partial pressure formula

A

Pgas = X gas * P total

x = mol

55
Q

Concentration

A

C = Kh * Pgas

Kh = 6* 10^-3 mol/atm

56
Q

How to calculate own cardiac cycle per minute through Hz?

A

1.5 Hz/1s * 60 s / 1 min = 90 cycles/ min

57
Q

Ohm Law for flow

A

Pressure drop is proportional to its resistance
Delta P = Q * R

58
Q

Normal inspiration

A

Contraction of the diagram.
Volume of the pleural cavity increases and intrapleural pressure decreases while alveolar pressure increases which causes the lungs to inflate

59
Q

The resiliency of the kings refers to the kings ability…

A

To recoil after being stretched

60
Q

What is surface tension of a liquid?

A

Imbalance if intermolecular forces at its surface that makes its surface as a thin, elastic firm.

Arises from cohesive forces in a fluid.

61
Q

Low concentration means

A

Low solubility and low blood gas coefficient

62
Q

Buoyancy states

A
63
Q

Reynolds’s number function and formula

A

To determine the flow is laminar or turbulent

R = p VL / viscosity

64
Q

Pressure in a fluid barometer

A

Uworld (24 decks)

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