FORMULAS Flashcards
Distance
d=vt
Big Five Equations
V=vo+at
V^2=vo^2+2ad
d=vot+1/2at^2
Centripetal acceleration and force
a=v^2/r
F=mv^2/r
Law of Gravitation
F=GMM/r^2
Newtons 2nd Law
F=ma
Torque
t=Flsin0
Hooke’s Law
F=-kx
Kinetic Energy
KE=1/2mv^2
Gravitational potential energy
PE=mgh
Spring Potential Energy
PE=1/2kx^2
Power
P=W/t
Work
W=Fdcos0
Momentum
p=mv
Electrical Power
P=IV
Ohm’s Law
V=IR
Current
I=q/t
Capacitors and Resisters in Series
1/C1+1/C2+1/C3….
R1+R2+R3….
Capacitors and Resistors in Parallel
C1+C2+C3…
1/R1+1/R2+1/R3…
Electrostatic Force
F=kqq/r^2
Electrical Field
E=F/q
Electrical Field due to a point charge
E=kq/r^2
Electrical Potential
V=U/q
Electrical Potential of a point charge
V=kq/r
Capacitance
q=VC
Energy Stored by a Capacitor
U=1/2CV^2
Density
p=m/v
Pressure
P=F/A
Specific Gravity
S.G=density (substance)/
density (water)
Buoyant Force
F=p(fluid)V(sub)g
Osmotic Pressure
pi=MRT
Total Pressure on a Fluid
P(total)=P(atm)+P(gauge)
Gauge Pressure
P=p(fluid)gh
Continuity Equation
A1V1=A2V2
Heat Energy
Q=mcT
Latent Heat
Q=mL
First Law of Thermodynamics
U=Q-W
Gibbs Free Energy
G=H-TS
Standard Equilibrium Equation
deltaG=-RTlnKeq
Wave Frequency and Period
f=1/T
Wave Speed
V=f(wavelength)
Index of Refraction
n=c/v
Photon Energy
E=hf
Magnification
m=-i/o
Snells Law
n1sin1=n2sin2
Lensmakers Equation
1/f=1/o+1/i
Alpha decay
Loss of helium (decrease in atomic number by 2 and atomic mass my 4)
Beta- decay
Neutron–> Proton (Loss of electron, atomic number increases by 1, atomic mass is same)
Beta+ Decay
Proton–> Neutron (Loss of positron, atomic number decreases by 1, atomic mass is same)
Ideal Gas Law
PV=nRT
Charles’ Law
V1/T1=V2/T2
Boyle’s Law
P1V1=P2V2
Avogadro’s Law
n1/V1=n2/V2
pH
pH= -log[H+]
Dilution
M1V1=M2V2
Hardy Weinburg
p+q=1
p^2 + 2pq + q^2 =1
