physics index card

7/28/2019 Physics Index Card

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1.v=v0+at2. x=x0+v0t+1/2at2 3.v2=v02+2a(x-x0)4.vavg=x/t5.aavg=v/t6.F=Fnet=ma7.FfrictionN8.ac=v2/r 9.Fg=mg10.Fs=-kx11.FG=-Gm1m2/r 2 12.Fc=mac 13.v=2r/T14.W=Frcos15.K=1/2mv2

16.Ug=mgh17.Us=1/2kx2 18.Pavg=W/T19.P=Fvcos20.p =mv21.J=Ft=p22.T=rFsin(Torque)23.Ts=2(m/k)24.T=1/f 25.TP=2(l/g)26.UG=-Gm1m2/r

27.p =m/v28.P=F/A29.P=P0+p gh30.F buoy=p Vg31.A1v1=A2v232.P+p gy+1/2pv2=const.33.C+273=K 34.l=l0T35.Q=mcT36.H=(kAT)/L37.PV=nRT=nk BT38.P1V1/T1=P2V2/T239. U=Q+W40.W=-PV41.Q=nCT

42.W=-nRT43.e=|W/Qh|44.Ec=(Th-Tc)/Th45.(Qc/Qh)=(Tc/Th)46.K avg=(3/2)k BT47.vrms=(3RT/M)=(3k BT/)-Average Speed of a Molecule48.v=f49.v=(T/)50.f beat=f 1-f 251.i=r

52.n=c/v53.n1sin1=n2sin2 54.sinc=n2/n155.f=R/2-+=converge,-=diverge56.M=(hi/ho)=(si/so)57.1/si+1/so=1/f 58.xm(mL)/d59.dsin=m-Bright Line60.dsin=(+m)-Dark Line61.F=(kq1q2)/r 2 62.E=F/q63.E=(kq)/r 2 64.V=k(q1/r 1+q2/r 2+q3/r 3...)65.UE=qV=kq1q2/r 66.Eavg=-V/d

67.Iavg=Q/t68.R=p l/A69.V=IR 70. P=IV71.R s=R 1+R 2+R 3...72.1/R p=(1/R 1)+(1/R 2)+(1/R 3)...73. C=Q/V74.C=( 0A)/d75.C=(R 0A)/d76.Uc=1/2QV=1/2CV2

77.(1/Cs)=(1/)+...78.C p=C1+79.B=0I/280.FB=qvB81.FB=BIls82.mf =Blv83. m=BA84.avg=-85.E=hf 86.K max=hf87. =hf 0=88.=h/p89.E=m

90.V=(gvertical circle

91.2...Con

92.3/4...D

93.2...Con


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94. D2-d1=1/2,3/2...Destruct

= Work Function

P=Either resistivity or density, dependingon formulaL=ThicknessL=LengthP=Momentum


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Important to Remember:

Hand Rules:Hand Rule 1:1.Thumb points current2.Fingers circle in direction of fieldHand Rule 2:

1.Fingers trace current direction2.Thumb points north poleHand Rule 3:1.Fingers follow magnetic field direction2.Thumb follows particle direction3.Out of palm is F on + particle4.Back of palm is F on - particleSeries Circuit:Voltage splits, I is equal acrossQ is equal across (Capacitors)Parallel Circuit:Voltage is equal, I splitsQ splits (Capacitors)Lenzs Law: Magnetic Friction, thirdhand ruleAll current entering equals all currentleavingAll voltage in and voltage out must equal0 for complete loopPhase Shift:n1


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Optics:Si is positive for real, negative for virtualConverging: Object is closer than f, imageis virtualDiverging: Always virtual, smaller

1W=1J/s

physics index card

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