高中物理必背知识点实用口诀(txt手机版)（practical tips for high school physics (txt)）

高中物理必背知识点实用口诀TXT手机版（PRACTICALTIPSFORHIGHSCHOOLPHYSICSTXT）1DESCRIPTIONOFMOVEMENT1OBJECTMODELWITHPARTICLESIZE,IGNORESHAPEANDSIZETHEEARTHTURNSTOBEAPARTICLE,THEEARTHSROTATIONISABOUTTHESIZETHECHANGEOFTHEOBJECTPOSITION,ACCURATEDESCRIPTIONWITHDISPLACEMENT,SPEEDSMOVEMENTTHANT,WITHVANDTTHANA2USINGGENERALFORMULA,AVERAGEVELOCITYISSIMPLEMETHOD,INTERMEDIATETIMEVELOCITYMETHOD,INITIALVELOCITYZERORATIOMETHOD,ANDGEOMETRICIMAGEMETHOD,TOSOLVETHEMETHODOFMOTIONTHEFREEFALLISANINSTANCE,THEINITIALVELOCITYISZEROA,ETCTHESPEEDOFTHECENTERMOMENTISEQUALTOTHEAVERAGEVELOCITYACCELERATIONHASAGOODSIDE,SATSQUARE,ETC3THEVELOCITYDETERMINESTHEMOTIONOFTHEOBJECT,INTHEDIRECTIONOFTHEACCELERATIONOFTHEVELOCITY,THESAMEDIRECTIONISACCELERATEDBACKWARD,ANDTHEVERTICALTURNINGISTHESAMESECOND,THEFORCE1FORCEANALYSISISTHEKEYTOSOLVEMECHANICALPROBLEMSANALYZETHEFORCEOFFORCEANDDEALWITHITACCORDINGTOTHEEFFECT2THEANALYSISFORCESHOULDBECAREFUL,QUANTITATIVECALCULATIONOFSEVENFORCESTHEFORCEOFGRAVITYISDETERMINEDBYTHEFORCEOFGRAVITYTHEREISELASTICITYANDFRICTION,RELATIVEMOTIONISTHEBASISTHEFORCEOFGRAVITYISDEFINITEINALLTHINGSLORENZFORCE,THEESSENCEISUNITYVERTICALFORCEISTHELARGEST,PARALLELINABILITYTOREMEMBER3THECALCULATIONRESULTISONLY“QUANTITY“INTHESAMEDIRECTIONTHETWOFORCESARESMALLANDLARGE,TWOFORCESAREQANGLECLIP,PARALLELOGRAMMETHODTHERESULTANTFORCESIZEVARIESWITHQ,ONLYINTHEMAXIMUMMINIMUM,ANDTHEFORCEOFTHEFORCEISCOMBINEDTOTHEOTHERSIDETHEMULTIFORCEPROBLEMSTATE,ORTHOGONALDECOMPOSITIONTOSOLVE,TRIGONOMETRICFUNCTIONSCANBERESOLVED4MULTIPLEMETHODSOFMECHANICALPROBLEMS,INTEGRALISOLATIONANDHYPOTHESISALLYOUNEEDTODOISLOOKATTHEEXTERNALFORCEANDSOLVETHEINTERNALFORCEISOLATIONTHESTATEISTHESAMEASTHEWHOLE,OTHERWISEITISMUCHMOREISOLATEDEVENIFTHESTATEISDIFFERENT,THEWHOLECOWIICANBEDONESUPPOSETHATSOMEFORCEISORISNOT,ANDISDETERMINEDACCORDINGTOTHECALCULATIONTHELIMITMETHODGRABSTHECRITICALSTATE,THEPROCEDURALLAWISDONEINORDERORTHOGONALDECOMPOSITIONCOORDINATES,THEAXIALVECTORISASMUCHASPOSSIBLENEWTONSLAWSOFMOTION1FANDOTHERMA,NEWTONTWOLAW,PRODUCEACCELERATION,BECAUSEOFFORCESOTHENETFORCEISGOINGINTHESAMEDIRECTIONASA,SOTHEVELOCITYVARIABLEISGOINGTOBEEQUALTOA,SOITSGOINGTOBEASMALLER,BUTITSGOINGTOBEGREATERTHANU,SOITSGOINGTOBEEQUALTOU2THEFORCEOFNANDTDEPENDSONTHEWEIGHT,ANDTHEMGPRODUCTISTHEREALWEIGHTHEAVYWEIGHTLOSSISREGARDEDASHEAVY,ANDTHEINVARIANTISREALWEIGHTACCELERATIONISOVERWEIGHT,DECELERATIONISALSOOVERWEIGHTWEIGHTLESSNESSISDETERMINEDBYADDINGANDDECREASING,COMPLETELYLOSINGATTENTIONTOZEROFOUR,CURVEMOTION,GRAVITATION1THEMOTIONTRAJECTORYISTHECURVE,THECENTRIPETALFORCEEXISTSASTHECONDITION,THECURVEISCHANGING,THEDIRECTIONISTHETANGENTLINE2THECIRCULARMOTIONCENTRIPETALFORCE,THESUPPLYANDDEMANDRELATIONINTHEHEART,THERADIALFORCEPROVIDESTHEFOOT,NEEDSMUSQUAREDOVERR,MRWSQUAREALSONEEDS,THESUPPLYANDDEMANDBALANCEISNOTDISORIENTEDGRAVITATIONISBORNOFMASSANDEXISTSINALLOFTHEWORLDSATELLITESORBITTHECELESTIALBODY,ANDTHEFASTANDSLOWMOTIONOFTHESATELLITEISDETERMINEDBYDISTANCE,THECLOSERITIS,THEFASTERITGOES,THEFARTHERITGOES,THESLOWERITGOES,THESPEEDOFTHESYNCHRONOUSSATELLITEISFIXED,ANDTHESATELLITEISTRAVELINGOVERTHEEQUATORMECHANICALENERGYANDENERGY1DETERMINETHESTATEFORKINETICENERGY,THEANALYSISPROCESSLOOKSFORTHEFORCEWORK,PLUSTHEPOSITIVEANDNEGATIVEWORKTOGETHER,THEKINETICENERGYINCREMENTISTHESAMEASTHATITSCLEARTHATTHETWOSTATEMECHANICALENERGY,THEPROCESSFORCEISDOINGWORK,THE“GRAVITY“ISZERO,THEINITIALSTATEENERGYISTHESAME3DETERMINETHESTATETOFINDTHEAMOUNTOFENERGY,ANDTHENLOOKATTHEPROCESSFORCETODOWORKSOTHERESACHANGEINENERGY,ANDTHEINITIALSTATEENERGYISTHESAME6ELECTRICFIELD1COULOMBSLAWCHARGEFORCE,GRAVITATIONALATTRACTIONFORCE,ASIFITISTHETWINBROTHER,KQQANDRSQUAREDRATIO2THEREISANELECTRICFIELDAROUNDTHECHARGE,ANDFISSTRONGERTHANQKQISMORETHANR2,ANDUISEQUALTOTHEELECTRICFIELDTHEINTENSITYOFTHEELECTRICFIELDISTHEVECTOR,THEFORCEOFTHEPOSITIVECHARGEISFIXEDDESCRIPTIONOFTHEUSEOFELECTRICFIELD,THEDENSITYOFWEAKANDSTRONGTHEFIELDENERGYISELECTRICPOTENTIALANDTHEFIELDLINEISDECREASINGTHEWORKOFFIELDFORCEISQU,THEKINETICENERGYTHEOREMCANNOTBEFORGOTTEN4THEELECTRICFIELDHASEQUIPOTENTIALSURFACE,WHICHISPERPENDICULARTOTHEFIELDLINETHEDIRECTIONISLOWWITHHIGHDIRECTION,ANDTHESURFACEDENSITYISCHARACTERISTIC7,CONSTANTCURRENTISOPTIONAL31WHENTHECHARGEISMOVING,THECURRENTISEQUALTOQOVERTTHEFREECHARGEISTHEINTERNALCAUSE,ANDTHEVOLTAGEONBOTHENDSISTHECONDITIONTHEPOSITIVELOADFLOWDIRECTIONISDETERMINED,ANDTHEFLOWMETERISMEASUREDTHEEXTERNALCURRENTOFTHEPOWERSUPPLYISNEGATIVE,FROMNEGATIVETOSERIOUS2THREEFACTORSOFRESISTANCELAW,THETEMPERATUREISCONSTANT,THECONTROLVARIABLEISDISCUSSED,RLRATIOSANDOTHERRESISTANCETHECURRENTISDOINGTHEWORKUIT,THEELECTROTHERMALISQUAREDRTELECTRICPOWER,WRATIOT,VOLTAGETIMESCURRENTISALSO3BASICELECTRICPATHLINKINGANDSEPARATINGPRESSURESHUNTCOMPLEXCIRCUITSUSETHEBRAIN,THEEQUIVALENTCIRCUITISTHEKEY4PARTIALCIRCUITOFCLOSEDCIRCUIT,EXTERNALCIRCUITANDINTERNALCIRCUIT,FOLLOWEDBYOHMPRESSUREDROPINTHETERMINALVOLTAGE,ANDTHEELECTROMOTIVEFORCE,EXCEPTTHETOTALRESISTANCECURRENTIS8,31THEREISAMAGNETICFIELDAROUNDTHEMAGNET,ANDTHEFORCEOFTHENISDETERMINEDTHEREISAMAGNETICFIELDAROUNDTHECURRENT,ANDAMPERESETTHEDIRECTION2FRATIOILISTHEFIELDINTENSITY,PHIANDOTHER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