Equations Flashcards
1
Q
couphysics
kinematics equations
A
2
Q
physics
newton’s first law
A
3
Q
physics
newton’s second law
A
4
Q
physics
newton’s third law
A
5
Q
physics
centre of mass
A
6
Q
physics
friction
A
N = perpendicular to contact surface, mg or mgcosθ on ramp
7
Q
physics
gravitational force
A
8
Q
physics
centripetal acceleration
A
9
Q
physics
centripetal force
A
10
Q
physics
hooke’s law
A
11
Q
physics
torque
A
12
Q
physics
work
A
+ve when F in same direction as movement
-ve when F opposes movement
W = 0 when force is perpendicular
13
Q
physics
power
A
14
Q
physics
kinetic energy
A
15
Q
physics
gravitational potential energy
A
16
Q
phyiscs
elastic potential energy
A
17
Q
physics
conservation of energy
A
18
Q
physics
work energy theorem
A
19
Q
physics
pressure-volume curve
A
WORK is the area under a P-V curve
+ve W = gas expands, work done BY gas
-ve W = gas compressed, work done TO gas
20
Q
physics
pulleys + mechanical advantage
A
W = F x d
machine DECREASES force
so distance must INCREASE
Work done stays the SAME
21
Q
physics
root mean square of velocity
A
22
Q
physics
first law of thermodynamics
A
+ve Q = heat flows in, -ve Q = heat flows out
+ve U = increasing temp, -ve U = decreasing temp
+ve W = work done by system (expansion)
23
Q
physics
ideal gas law
A
24
Q
physics
density
A
1mL = 1cm^3
1000L = 1m^3
25
# physics
specific gravity
less than 1 = less dense, will FLOAT
26
# physics
pressure
1x10^5 Pa = 760 torr = 1atm
27
# physics
absolute pressure
so P increases as you get deeper
28
# physics
hydrostatic pressure
pressure from static fluid
conceptually like GPE
29
# physics
dynamic pressure
pressure from moving fluid
conceptually like KE
30
# physics
absolute pressure
31
# physics
buoyant force
**use density of FLUID**
volume of fluid displaced = volume of submerged object
32
# physics
pascal's law
both pressure and volume moved on both sides is equal
can also be --> A1d1 = A2d2
33
# physics
poiseuille's law
**ΔP ∝ 1/r^4**
increase r, BIG decrease in P
34
# physics
bernoulli's law
fluid rises up HIGH where P is high (large Area, smaller Velocity - less dynamic pressure, so static is higher)
35
# physics
if SPEED of fluid increases:
effect on pressure
dynamic pressure = increases
static pressure = decreases
**bio Q's usually refer to pressure as hydrostatic**
36
# physics
continuity equation
conservation of mass, fluids flow faster when A is smaller
37
# physics
kelvin + celcius
K = C + 273
0C = 273K
delta T is the SAME
38
# physics
thermal expansion: length
how does length change? a LOT (looks like eq)
39
# physics
thermal expansion: volume
coefficient of VOLUME expansion = 3X length coefficient
aV = 3X aL
40
# physics
state functions
PaPa HUGS TV
pressure (P), density (p), enthalpy (H), internal energy (U), free energy (G), entropy (S), temp (T), volume (V)
41
# physics
heat gained/lost
q = mcΔT
42
# physics
electric field
where q is a test charge (+ convention)
E = N/C
43
# physics
coulomb's law
electrostatic force between 2 charges (magnitude)
44
# physics
electric potential energy
still N x m = Joules
work required to move a charge here from **infinity **
EPE high when 2 like charges brought CLOSE
EPE high when 2 opposite charges SEPARATED more
45
# physics
electric potential
* VOLTAGE
* ratio of charge's EPE to the magnitude of charge itself **Volts, scalar**
46
# physics
voltage
ΔV = Vb - Va
potential difference
47
# physics
magnetic field around a wire
* use RHR (thumb = I, fingers = field)
* for a LOOP wire, same eq without pi (same RHR)
48
# physics
magnetic force on a charge
* so when angle = 0 or 180 (parallel/antiparallel) there is NO FORCE **force highest when angle is 90**
* direction of force = RHR (fingers=field, thumb = velocity of charge/current of wire, palm=force)
* if charge is (-), force direction is opp (back of hand)
49
# physics
magnetic force on a current carrying wire
* same RHR but thumb = current
50
# physics
resistance
directly proportional to length
inversely proportional to area
51
# physics
ohm's law
52
# physics
power (circuits)
power dissipated by each resistor
53
# physics
current in series
54
# physics
voltage in series
55
# physics
resistance in series
56
# physics
current in parallel
57
# physics
voltage in parallel
58
# physics
resistance in parallel
59
# physics
capacitance
60
# physics
capacitance: equation 1
61
# physics
capacitance: equation 2
62
# physics
E field between capacitor plates
63
# physics
capacitance in series
64
# physics
capacitance in parallel
65
# physics
speed of wave
66
# physics
speed of sound
67
# physics
decibel level
68
# physics
doppler effect
* mnemonic: observer = detector (d), and source (s) --- d / s = dom / sub ;)
* ignore the observer +/-, observer NEVER MOVES
* so becomes v / (v +/- Vs)
* **subtract source speed when moving towards**
69
# physics
intensity of sound
I = A^2
I = 1 / d^2
so... **intensity directly prop. to area squared (high area = high intensity)
intensity inversely prop. to distance squared (high distance from source, low intensity)
70
# physics
strings and open pipes: wavelength and freq. formulas
71
# physics
closed pipe: wavelength and freq. formulas
n (harmonic) only ODD INTEGERS
72
# physics
energy of EM wave
73
# physics
refractive index
74
# physics
snell's law
75
# physics
single-slit diffraction
76
# physics
double-slit diffraction MAXIMUM
77
# physics
double-slit diffraction MINIMUM
78
# physics
thin lens equation
79
# physics
magnification
80
# physics
power of a lens
81
# physics
mass-energy equivalence
82
# physics
alpha decay
83
# physics
beta-minus decay
84
# physics
beta-plus decay
85
# physics
gamma decay
86
# physics
electron capture
87
# physics
exponential decay
88
# physics
half life
89
# chem
formal charge
90
# chem
percent yield
91
# chem
equilibrium
92
# chem
Q vs Keq
93
# chem
heat
94
# chem
gibbs free energy
95
# chem
gibbs free energy of a reaction: compared to standard
96
# chem
gibbs free energy at equilibrium
97
# chem
parial pressures
98
# chem
boyles law
99
# chem
charle's law
100
# chem
gay-lussac's law
101
# chem
molality
102
# chem
arrhenius equation
103
# chem
rate of reaction
104
# chem
pH
105
# chem
henderson hasselbalch equation
106
# chem
cell potential Ecell
107
# chem
nernst equation
108
# chem
electroplating: moles of metal
109
# chem
michaelis-menten kinetics
110
# chem
beer-lambert law
