Physics/Math Flashcards

1
Q

Pascals principle

A

pressure applied to an incompressible fluid will be distributed throughout entire volume of fluid

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2
Q

Archimedes principle

A

any body submerged in a fluid at rest is acted upon by a buoyant force which is equal to the weight of the liquid

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3
Q

Heat of transformation/ latent heat

A

heat released or absorbed for a phase change (temperature-constant)

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4
Q

Sublimation

A

solid to gas

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5
Q

Deposition

A

gas to solid

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6
Q

Vaporization

A

liquid to gas

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7
Q

Condensation

A

gas to liquid

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8
Q

Fusion/ Melting

A

solid to liquid

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9
Q

Freezing

A

liquid to solid

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10
Q

Poiseulle’s law

A

rate of laminar flow

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11
Q

Continuity equation

A

conservation of mass with fluid dynamics (Q=vA=vA)

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12
Q

Bernouilli’s equation

A

conservation of energy for a flowing fluid

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13
Q

Absolute pressure

A

sum of all pressures at a certain point within a fluid (pressure of the fluid + ambient pressure)

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14
Q

Gauge pressure

A

difference between absolute pressure and atmospheric pressure

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15
Q

Venturi effect

A

inverse relationship between pressure and speed, proportional relationship between cross sectional area and pressure

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16
Q

Equipotential lines

A

the set points around a charge that have the same electric potential

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17
Q

Diamagnetic materials

A

no unpaired electrons, slightly repelled by magnetic

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18
Q

Paramagnetic materials

A

some unpaired electrons, become weakly magnetic in an external magnetic field

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19
Q

Ferromagnetic materials

A

some unpaired electrons, become strongly magnetic in an external magnetic field

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20
Q

Lorentz force

A

sum of magnetic and electrostatic forces acting on a body

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21
Q

Kirchoff’s junction rule

A

sum of currents directed into a point equals the sum of the currents directed away from the point

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22
Q

Kirchoff’s loop rule

A

in a closed loop, the sum of voltage sources is always equal to the sum of voltage drops

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23
Q

Resistance

A

opposition to the movement of electrons through a material

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24
Q

Ohm’s law

A

V=IR

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25
Series
resistors are additive, voltage is additive, capacitors cause a decrease in capacitance
26
Parallel
resistors cause a decrease in resistance, voltage is equivalent, capacitors are additive
27
Capacitors
ability to store and discharge electrical potential energy
28
Dielectric materials
insulators placed between plates of a capacitor that increase capacitance by a factor equal to the dielectric constant
29
Ammeters
inserted in series, measure current, negligible resistance
30
Voltmeters
inserted in parallel, measure voltage drop, large resistances
31
Ohmmeters
inserted around a resistive element, measure resistance, self-powered, negligible resistance
32
Transverse waves
oscillate perpendicular to wave propagation (ex. electromagnetic waves)
33
Longitudinal waves
oscillate parallel to wave propagation (ex. sound waves)
34
Angular frequency
way to express frequency in radians
35
Traveling waves
continuously shifting points of max and min displacement
36
Standing waves
produced by the constructive and destructive interference of two waves of the same frequency travelling in opposite directions
37
Resonance (waves and sound)
increase in amplitude that occurs when a force is applied at the natural frequency (timing the pushes to be the same as natural frequency)
38
Damping
decrease in amplitude by an applied or nonconservative force
39
Pitch
related to frequency
40
Doppler effect
shift in perceived frequency compared to actual frequency, when the source and detector are moving relative to one another (moving toward- higher perceived, moving away-lower perceived), top for moving forward, bottom for moving away
41
Sonic boom
when the source is moving above speed of sound
42
Sound level
related to intensity and amplitude
43
Attenuation
the reduction of the amplitude of a signal
44
Open pipes
support standing waves, 2L/n
45
Strings
support standing waves, 2L/n
46
Closed pipes
support standing waves, 4L/n
47
Beat frequency
f1-f2
48
Change in sound level
Bf=Bi+10log(If/Ii)
49
Sound level
B=10log(I/Io)
50
Concave mirrors
converging
51
Convex mirrors
diverging, only produce virtual, upright, reduced
52
Plane mirrors
only produce virtual, upright, same size
53
Snell's law
nsin=nsin
54
Total internal reflection
when moving from high index of refraction to lower index of refraction
55
Critical angle
the minimum incident angle at which total internal reflection occurs
56
Convex lenses
converging
57
Concave lenses
diverging, only produce virtual, upright, reduced
58
Diffraction
bending and spreading out of light waves as they pass through a narrow slit, large central light fringe
59
Minima
dark fringes
60
Maxima
bright fringes
61
Work function
minimum energy to eject an electron from a given metal
62
Nuclear binding energy
the amount of energy released when nucleons bind together
63
4 fundamental forces of nature
strong nuclear force, weak nuclear force, electrostatic force, gravity
64
Mass defect
the difference between mass of unbonded nucleons to mass of bonded nucleons within a nucleus
65
Alpha decay
helium nucleus released
66
B- decay
proton becomes neutron, electron and antineutrino released
67
B+ decay
neutron becomes proton, positron and neutrino released
68
Gamma decay
emission of gamma ray
69
Electron capture
electron is captured and combines with proton to form neutron
70
Observational studies
cohort, cross-sectional, case-control
71
Cohort studies
studies incidence, causes and prognosis
72
Cross-sectional studies
determine prevalence
73
Case-control studies
compare groups retrospectively
74
Error
bias, confounding, random error
75
Selection bias
sample differs from population
76
Detection bias
professionals search for an outcome disproportionately
77
Hawthorne effect
changes in behaviour that occur as a results of knowledge that the subject is being observed
78
Confounding
error in data analysis where both the dependent and independent variable have a common connection to a third variable
79
4 principle of medical ethics
beneficence, nonmaleficence, autonomy, justice
80
Parameters
population data
81
Statistics
sample data
82
Internal validity
the degree of confidence that the causal relationship being tested is trustworthy
83
External validity
the extent to which results from a study can be applied
84
Mean
equally weighs all values, most affected by outliers
85
Median
50% of data points are above and below the median
86
Mode
data point that appears most often, there may be multiple data points
87
Normal distribution
symmetrical, mean, median and mode are all the same
88
Standard deviation
68% data points occur within 1 SD, 95% within 2 SD 99% within 3 SD
89
Skewed distributions
differences in mean, median and mode, the direction of the tail
90
Bimodal distributions
multiple peaks
91
Interquartile range
used to determine outliers, 3 IQR - 1 IQR