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AP Physics Equations
All the equations for the AP Physics test
70
Physics
12th Grade
01/16/2008
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Term
Uniform Acceleration Eq. 1
 Definition
VF=VI+at
Term
Uniform Acceleration Eq. 2
 Definition
s=1/2 (Vf+Vi)t
Term
Uniform Acceleration Eq 3
 Definition
s=vit + (1/2)at2
Term
Uniform Acceleration Eq 4
 Definition
Vf2 = Vi2 + 2as
Term
Newton's Second Law
 Definition
Fnet=ma
Term
Centripetal Acceleration
 Definition
ac=v2/r
Term
torque
 Definition
τ=rFsinθ
Term
Centripetal Force
 Definition
fc=(mv2)/r
Term
Momentum
 Definition
p=mv
Term
Impulse
 Definition
J=Δp=FΔt
Term
Kinetic Energy
 Definition
KE=(1/2)mv2
Term
Gravitational Potential Energy
 Definition
gpe=mgh
Term
Poweravg
 Definition
W/Δt
Term
Hooke's Law
 Definition
Fs=-kx
Term
Power
 Definition
Fvcosθ
Term
Potential EnergySpring
 Definition
US=(1/2)kx2
Term
Period of a Spring
 Definition
T=2π√(m/k)
Term
Period of a Pendulum
 Definition
Tp=2π√(l/g)
Term
Definition of Period
 Definition
T=1/f
Term
Energy of a Photon
 Definition
E=hf=pc
Term
Specific heat
 Definition
Q=mCsδt
Term
Definition of capacitance
 Definition
C=Q/V
Term
Coulomb's Law
 Definition
F=(kq1Q2)/r2
Term
Electric Potential Definition
 Definition
V=U/q
Term
Ohm's Law
 Definition
V=IR
Term
Heat of Vaporization
 Definition
Q=mLv
Term
Heat of Fusion
 Definition
Q=mLf
Term
Capacitance in terms of Physical Characteristics
 Definition
C=(ε0A)/d
Term
Law of Universal Gravitation
 Definition
FG=-(Gm1m2)/r2
Term
Electric Potential Energy between two point charges
 Definition
U=(kQ1q2)/r
Term
Linear Expansion Eq
 Definition
ΔL=αL0ΔT
Term
Ideal Gas Law
 Definition
PV=nRt=NkBT
Term
Energy Stored in a Capacitor
 Definition
UC=(1/2)Q/V=(1/2)CV2
Term
Definition of Electric Field Strength
 Definition
E=F/q
Term
Efficiency for a Carnot Engine
 Definition
e=(TH-TL)/TH
Term
Definition of Pressure
 Definition
P=F/A
Term
First Law of Thermodynamics
 Definition
ΔU=W+Q
Term
Definition of Mechanical Power
 Definition
P=W/Δt
Term
root-mean-square velocity
 Definition
vrms=√((3RT)/M)=√((3kBT)/μ
Term
Electric Field Strength Eq for a point charge
 Definition
E=kQ/r2
Term
Resistance in terms of physical characteristics
 Definition
R=(ρl)/A
Term
Static Friction
 Definition
fs=μsRn
Term
Kinetic Friction
 Definition
fk=μkRn
Term
Gravitational Potential Energy
 Definition
UG=--(Gm1m2)/r
Term
Acceleration due to Gravity
 Definition
aG=GM1/r2
Term
Snell's Law of Refraction
 Definition
n1sinΘ1=n2sinΘ2
Term
Definition of Index of Refraction
 Definition
n=c/v
Term
Critical Angle Formula
 Definition
sinΘc=(n2)/n1
Term
einstein's theory of relativity
 Definition
E=mc2
Term
Work done on a System
 Definition
W=-PΔV
Term
Efficiency of an Heat Engine
 Definition
e=|W/QH|
Term
Electric Potential for source charge
 Definition
V=k(Q/r)
Term
Electric Potential Difference
 Definition
V=U/q
Term
Electric Field
 Definition
E= k(Q/r2)
Term
Electric Current
 Definition
I=q/t
Term
Electrical Power
 Definition
P=IV
Term
Magnetic Field Strength around a wire
 Definition
B= (μ0/2π) (I/r)
Term
Magnetic flux density
 Definition
Ø=BA
Term
Magnetic force for moving charges
 Definition
F=qvBsinΘ
Term
Magnetic Force for Current Carrying WIre
 Definition
F=ILBsinΘ
Term
Faraday's Law
 Definition
V=(-NBA)/t
Term
Induced Electric Field in moving Wire
 Definition
E=vBsinΘ
Term
Voltage induced on moving wire in electric field
 Definition
V=BlvsinΘ
Term
Capacitors in Series
 Definition
1/CS=Σ1/C1+etc
Term
Capacitors in Parallel
 Definition
CP=ΣC1
Term
Resistors in Series
 Definition
RS=ΣR1
Term
Resistors in Parallel
 Definition
1/RP=Σ1/R1
Term
Electric Field
 Definition
E=-V/d
Term
Wavelength
 Definition
λ=h/p
Term
velocity of a wave
 Definition
v=fλ
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