69 terms

# ap physics b equations

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v=v. + at
change in velocity
x=x.+v.t+(.5at²)
Change in x for two dimentional motion
v²=v.² + 2a(x-x.)
Change in velocity during acclerated motion
ma
Force
uN
Frictional force
v²/r
Frsinø
Torque
mv
Momentum (p)
Ft
impulse
p
impulse
mvcosø
impulse
(1/2)mv²
Kinetic Energy
mgh
Potential Energy
fdcosø
Work
W/t
Power
kx
Force of Spring
(1/2)kx²
Potential energy of spring
2¶√(m/k)
Period of spring
2¶√(l/g)
Period of pendulum
1/f
Period (f=frequency)
Gmm/r²
Force of gravity between two masses
Gmm/r
Potential energy between two masses
E/q
Force on charge by electric field
F/q
Electric field
qV
Potential energy of charge
Q/V
Capacitance (C)
pl/A
Resistance
IR
Potential Difference (V)
IV
Power
I²R
Power
C+C+C+C+C....
Total Capacitance in parallel
(1/C)+(1/C)+(1/C)+...=(1/Ctotal)
Total Capacitance (Series)
R+R+R+R....
Total Resistance (Series)
(1/R)+(1/R)+(1/R)+...=(1/Rtotal)
Total Resistance in Parallel
qvBsinø
Force of B field on charged particle
BI l sinø
Force of B field on wire
BAcosø
Magnetic Flux
Magnetic Flux/t
Electro Magnetic Force
Blv
Electro magnetic Force (l is length of bar, v is velocity of bar)
P.+pgh
Pressure
pVg
Force of Buoyancy
Av=Av
initial Av is equal to final Av (Area and velocity initial is equivelent to final A and v)
P+pgy+½pv²
Constant (Bernoulli's Equation)
∂l.T
Change in Length
F/A
Pressure
PV=nRT
Ideal Gass equation
√(3RT/M)
root mean square velocity
PV
Work
Q+W
Total internal energy
[W/Qhot]
Efficiency
hf
energy
pc
energy
hf-work
Kinetic Energy
h/p
Wavelength
mc²
Change in energy
fý (ý=wavelength)
velocity
c/v
intdex of refraction (n)
nsinø=nsinø
Refraction equation(by seting one side to 90 you can find the critical angle)
n final/n initial
sin of critical angle
(1/di)+(1/do)=1/f
Mirors and lenses
Convex lenses f is
positive
diverging lenses f is
negative
R/2 (R is radius of curvature)
Focal point
W=0 constant volume
isochoric process
W=p(V-V.) constant pressure
isobaric process
W=Q constant temp
Isothermal process
Th-Tc/Th
Thermal efficiency of carnot engine
Kinetic energy is conserved
Elastic collision
Kinetic energy is not conserved
Inelastic collision