# Shared Flashcard Set

## Details

Physics B Formulas
Only formulas
67
Physics
05/03/2011

Term
 Average Velocity
Definition
 Δx Δt m/s
Term
 Average Acceleration
Definition
 Δv Δt m2/s
Term
 3 Kinematics Equations
Definition
 x=x0+v0t+.5at2 v2=v02+2a(x-x0) v=v0+at
Term
 Force of Friction
Definition
 Ff=μFN
Term
 Torque
Definition
 T=F•d
Term
 Net Force
Definition
 Fnet=ma
Term
 Momentum
Definition
 p=mv kg•m/s or N•s
Term
 Impulse
Definition
 FΔt=Δp kg•m/s or N•s
Term
 Conservation of Momentum
Definition
 p1,0+p2,0=p1,f+p2,f
Term
 2 Work Equations
Definition
 W=F•dll W=ΔKE=Kf-Ki N•m=J=Joule
Term
 Kinetic Energy (KE or K)
Definition
 KE=½mv2
Term
 Potential Energy (PE or U)
Definition
 PE=mgh
Term
 Conservation of Energy
Definition
 Ki+Ui+W=Kf+Uf
Term
 Force on a Spring
Definition
 Fspring=kx
Term
 Potential Energy of a Spring
Definition
 PEspring=½kx2
Term
 Power
Definition
 P=W/Δt=work/time=F•v Joules/second=W=Watts
Term
 Centripetal Acceleration
Definition
 ac=v2/r
Term
 Gravitational Force
Definition
 FG=GM1M2      r2
Term
 Potential Energy of Gravity
Definition
 PEG=GM1M2        r
Term
 Period
Definition
 T=1/ƒ cycle/second=Hz=Hertz
Term
 Period of Oscillation for a Spring
Definition
 T=2π√(m/k)
Term
 Period of Oscillation for a Pendulum
Definition
 T=2π√(L/g)
Term
 Thermal Expansion
Definition
 ΔL=[image]L0ΔT
Term
 Rate of Heat Transfer (H)
Definition
 H=kAΔT    L
Term
 Ideal Gas Law
Definition
 PV=nRT
Term
 Kinetic Energy of Gas
Definition
 KE=3/2kbT
Term
 vrms
Definition
 vrms=√(3kbT/m)
Term
 First Law of Thermodynamics
Definition
 ΔU=Q+W
Term
 Work Done by Gas
Definition
 W=-pΔV
Term
 Engine Efficieny
Definition
 e=W/QH (e<1)
Term
 Carnot Engine
Definition
 eideal=TH-TC         TH
Term
 Pressure
Definition
 P=Force     Area
Term
 Pressure in a Static Column
Definition
 P=P0+ρgh
Term
 Density
Definition
 ρ=Mass        Volume
Term
 Buoyant Force
Definition
 FB=(ρfluid)(Vsubmerged)g
Term
 Fluid Flow Continuity
Definition
 A1v1=A2v2
Term
 Bernoulli's Equation
Definition
 P1+ρgy1+ρv12=P2+ρgy2+ρv22
Term
 Ohm's Law
Definition
 V=IR
Term
 Power in a Circut
Definition
 P=IV=V2/R=I2R
Term
 Resistors
Definition
 Series=ΣR=R1+R2... Parallel=ΣR=1/R1+1/R2...
Term
 Capacitors
Definition
 Series=ΣC=1/C1+1/C2... Parallel=ΣC=C1+C2...
Term
 Electric Force on a Charge in an Electric Field
Definition
 F=qE
Term
 Electric Field Produced by Charges
Definition
 E=kq1q2   r2
Term
 Electric Field Produced by Parallel Plates
Definition
 E=V/d
Term
 Potential Energy in terms of Voltage
Definition
 PE=qV
Term
 Voltage Produced by Charges
Definition
 V=kq1q2  r
Term
 Charged Stored in a Capacitor
Definition
 Q=CV
Term
 Capacitance of a Parallel Plate Capacitor
Definition
 C=ε0A     d
Term
 Speed of a Wave
Definition
 v=λƒ
Term
 Position of Bright and Dark Spots for a Double Split
Definition
 dsinθ=mλ or x=mλL                       d
Term
 Index of Refraction
Definition
 n=c/v
Term
 Wavelength of Light in a Material
Definition
 λn=λ/n
Term
 Thin Film Intereference
Definition
 2t=mλn
Term
 Snell's Law
Definition
 n1sinθ1=n2sinθ2
Term
 The Critical Angle for Total Internal Reflection
Definition
 sinθc=n2/n1
Term
 Mirror Equation
Definition
 1/ƒ=1/di+1/do
Term
 Magnification Equation
Definition
 m=-di/do=hi/ho
Term
 Energy of a Photon
Definition
 E=hƒ=hc          λ
Term
 Momentum of a Photon
Definition
 p=h=E                                   λ  c
Term
 de Broglie Wavelength
Definition
 λ=h     p
Term
 Energy-mass Conversion
Definition
 E=mc2
Term
 Magnetic Flux
Definition
 ΦB=BA
Term
 Induced EMF
Definition
 ε=N ΔΦ       Δt
Term
 Induced EMF for a rectangular wire moving in or out of a magnetic field
Definition
 ε=BLv
Term
 Force on a Charged Paricled in a Magnetic Field
Definition
 F=qvB
Term
 Force on a Current-Carrying Wire
Definition
 F=ILB
Term
 Manetic Field on a long, straight, current-carrying wire
Definition
 B=μ0I     2Πr
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