AS GCE (H156) A GCE (H556) Physics A Data …

1 *7354486589* Physics A OCR 2017DC (RW) 144757/2 Oxford Cambridge and RSAThe information in this booklet is for the use of candidates following the advanced subsidiary in Physics A (H156) or the advanced GCE in Physics A (H556) data, formulae and relationships in this datasheet will be printed for distribution with the examination of this booklet may be used for document consists of 8 subsidiary GCE (H156) advanced GCE (H556) Physics AData, Formulae and Relationships BookletInstructions to Exams Officer/Invigilator Do not send this Data Sheet for marking; it should be retained in the centre or A2 Physics A OCR 20172 OCR 2015 A Level in Physics AData, Formulae and RelationshipsDataValues are given to three significant figures, except where more or fewer are constantsacceleration of free m s 2elementary 10 19 Cspeed of light in a 108m s 1 Planck 10 34J s Avogadro 1023mol 1molar gas J mol 1K 1 Boltzmann 10 23J K 1gravitational 10 11N m2kg 2permittivity of free space 10 12 C2 N 1 m 2(F m 1)

2 Electron rest 10 31kgproton rest 10 27kgneutron rest 10 27kgalpha particle rest massm 10 27kgStefan constant 10 8W m 2K 4 Quarksup quark charge = e32+down quarkcharge = e31 strange quarkcharge = e31 3 Physics ATurn over OCR 20173 OCR 2015 A Level in Physics A Conversion factorsunified atomic mass unit1 u = 10-27kgelectronvolt1 eV = 10-19 Jday1 day = 104syear1 year 107slight year1 light year 1015mparsec1 parsec 1016mMathematical equationsarc length = r circumference of circle = 2 rarea of circle = r2curved surface area of cylinder = 2 rhsurface area of sphere = 4 r2area of trapezium = ()h ba+21volume of cylinder = r2hvolume of sphere = 34 r3 Pythagoras theorem: 222cba+=cosine rule: Abcc bacos22 22 +=sine rule: CcBbAasinsinsin==sin tan and cos 1 for small angleslog(AB) = log(A)+log(B) (Note: lg = log10and ln = loge)log BA= log(A) log(B)log(xn)= n log(x)ln(ekx)= kx4 Physics A OCR 20174 OCR 2015 A Level in Physics AFormulae and relationshipsModule 2 Foundations of physicsvectorsFx=Fcos Fy=Fsin Module 3 Forces and motionuniformly accelerated motionv = u+attvus)(21+=221atuts+=v2=u2+ 2asforcetpF =p=mvturning effectsmoment =Fxtorque =FddensityVm =pressureAFp=p=h gwork, energy and powerW=Fxcos 100%inputenergy totaloutputenergy useful efficiency =tWP=P=Fvsprings and materialsF = kxFxE21=;221kxE= AF= Lx= E=5 Physics ATurn over OCR 20175 OCR 2015 A Level in Physics A Module 4 Electrons, waves and photonscharge t IQ =currentAnevI=work doneVQW=;W = Q.

3 VItW=resistance and resistorsALR = R=R1+ R2 +..RR R++=2111 1powerRVPRIP,IV P22===andinternal resistance = I(R + r) ; =V+Irpotential dividerinoutVRRRV +=2122121 RRVV=wavesv=f Tf1=API=Dxa =refractionvcn=nsin = constantsin C=n1quantum physicsE = hf hcE=hf= +KEmax ph =6 Physics A OCR 20176 OCR 2015 A Level in Physics AModule 5 Newtonian world and astrophysicsthermal Physics E=mc E=mLideal gasespV=NkT;pV = nRTpV =231cNm221cm=23kTE = kT23circular motion =T 2; = 2 fv= r rva2=;a= 2r F = rmv2;F = m 2r oscillations =T 2; = 2 fa= 2x x=Acos t;x = Asin t v = 22xA gravitational fieldmFg=2rGMmF =2rGMg =3224rGMT =rGMV =grGMm =energyastrophysicshf= E;E hc =dsin =n max T1L= 4 r2 T47 Physics ATurn over OCR 20177 OCR 2015 A Level in Physics A cosmology cvff dp1=v=H0d t=H0 1 Module 6 Particles and medical physicscapacitance and capacitorsVQC=dAC 0=C= 4 0RC=C1+ C2 +.

4 11121++=CC CW = 21QV ; W=CQ221;CVW221= =CRCRtxx =e0)e -(10 CRtxx =electric fieldQFE=204=rQqF 204=rQE dVE=rQV0 4 =energy = rQq0 4 magnetic fieldF=BILsin F = BQv8 Physics A OCR 2017 Oxford Cambridge and RSAC opyright InformationOCR is committed to seeking permission to reproduce all third-party content that it uses in its assessment materials. OCR has attempted to identify and contact all copyright holders whose work is used in this paper. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced in the OCR Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download from our public website ( ) after the live examination OCR has unwittingly failed to correctly acknowledge or clear any third-party content in this assessment material, OCR will be happy to correct its mistake at the earliest possible queries or further information please contact the Copyright Team, First Floor, 9 Hills Road, Cambridge CB2 1GE.

5 OCR is part of the Cambridge Assessment Group; Cambridge Assessment is the brand name of University of Cambridge Local Examinations Syndicate (UCLES), which is itself a department of the University of OCR 2015 A Level in Physics Aelectromagnetism = BAcos = tN ) (sppspsII VV nn==radius of nucleusR=r0A1/3radioactivityA= N;tN = - N t1/2=ln(2)A = A0e- tN = N0e- tEinstein s mass-energy equation E = mc2attenuation of X-raysI=I0e- xultrasound Z = c2122120)()(ZZZZII+ =rcvff cos2=