# AP Physics B Formulas Flashcards

Terms Definitions
 Work Magnification Capacitance Momentum Frequency f=1/T T=period Fc= (mv^2)/R Centripetal Acceleration Period-Frequency Relationship Ohm's Law Net Force Bernoulli's Equation Coulomb's Law Electric Power Conservative Work 0=(KE(f)+PE(f))-(KE(o)+PE(o) Tangential Velocity v=(2πr)/T Hook's Law F=Kdeltax J= delta p force of friction (Fn)(mu) forgotten power equation FV RMS of Velocity Power Equation 1 de Broglie wavelength Constructive Interference Point Index of Refraction Projectile Motion x-Direction Vx=x/t Gravitational Constant G=6.67E-11 N*m^2/kg^2 E in Magnetism F/Q Modern Physics E= HF formula for Carnot efficiency ((Th)-(Tl))/(Th) Period of a Spring Buoyant Force (Archimedes Principle) Rate of Heat Transfer Energy of a Photon Torque (italic T) (unit) N*m Nonconservative Work W= ΔKE- ΔPE=KE(f)-KE(o)+PE(f)-PE(o) Fg= mg or rho gv Torque T = FLsin θ formula for finding magnetic flux BA formula for constructive interference in a thin membrane with two phase changes 2nt=mwavelength Magnetic Force on a current Electric Field between Two Plates Work in an Isobaric System N (Sin theta 1)/(sin theta 2) Displacement Delta x = Vot +1/2at^2 Formula for frictional force Ff= μmg first kinematic V = (Vo) + at heat required to melt a substance M(Lf) Kinetic Energy of Electron Ejected from Metal Surface Displacement (x or y) (unit) meter (m) Final Velocity - Initial Velocity 2a(delta x) Power not using time P = FV the units of power other than watts joules/second hooke's law force of a spring = -KA formula for change in internal energy in a cosnstat volume PV process (3/2)nRdeltaT formula for efficiency not using work out ((Qin)-(Qout))/(Qin) change in internal energy during a cyclic process 0 Force in Terms of an Electric Field Formula relating charge and time I = Q/t Formulaic definition of Work W = Fdcos θ type of collision where K is conserved elastic collision the electric force between two objects of charge Q K |q||Q|/r^2 formula for finding the momentum of a photon h/wavelength First law of thermodynamics ΔU = W + Q electric field in a distance r from a charge k|Q|/r^2 Electric Potential = Potential Difference = V W/Q = F/C or KQ/R Formula for buoyant force if submerged volume is known Fb = ρvg new wavelength of light as it enters a new substance (No)(wavelength)=(Nn)(new wavelength) equation for the first law of thermodynamics deltaU = deltaQ + deltaW Force on a current carrying wire in a B-field F = ILBsin θ
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