建设丝绸之路经济带背景下新疆及中亚国家经贸合作方法

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1、高一物理必修1所有公式及推论及推论过程（Allformulasandcorollariesanddeductionprocessesarerequiredinhighphysics）AllformulasandcorollariesanddeductionprocessesarerequiredinhighphysicsThebestanswerPhysicsmusttake1knowledgepointThefirstchapterdescribesthemovement1.Basicconcepts1,thepart

2、icle2.Referenceframe3.Coordinatesystem4.Timeandtimeinterval5.Distance:thelengthofthetrackoftheobject6.Displacement:indicatesthechangeofpositionofobject.Itcanbeexpressedasavectorinalinesegmentfromthestartingpointtotheendpoint.Thedisplacementislessthanorequaltothed

3、istance.7.Speed:Physicalmeaning:indicateshowfasttheobject'spositionchanges.Averagespeedofclassification:samedirectionanddisplacementdirectionInstantaneousvelocity:Thedifferenceandtheconnectionspeedofthevelocityisthevector,andthevelocityisthescalarAveragespeed=dis

4、placement/time,averagespeed=distance/timeTheinstantaneousvelocityisequaltotheinstantaneousvelocity8.AccelerationPhysicalmeaning:howfasttheobjectischangingDefinition:(=therateofchangeofvelocity)Direction:thedirectionofthechangeinvelocityisthesame,andthedirectionof

5、velocityisuncertain.(orthesamedirectionasthenetforce)Ii.Motionpicture(studyoflinearmotiononly)1.X-timage(i.e.displacementimage)(1)theverticalinterceptrepresentstheinitialpositionoftheobject.(2)theobliquelineindicatesthattheobjectismovinginastraightline,andthehori

6、zontallineindicatesthattheobjectisstill,andthecurveindicatesthattheobjectismovinginastraightline.(3)thesloperepresentsthevelocity.Theabsolutevalueoftheslopeisthemagnitudeofthevelocity,thepositiveandnegativeoftheslopeisthedirectionofthevelocity.2.V-timage(velocity

7、image)(1)thelongitudinalinterceptrepresentstheinitialvelocityoftheobject.(2),tiltedlinessaidasauniformvariablelinearmotionobject,straightandlevelaccordingtotheobjectasauniformmotioninastraightline,curve,saidtheobjectasavariablespeedlinearmotion(accelerationsizech

8、ange).(3)theverticalcoordinaterepresentsthespeed.Theabsolutevalueoftheordinatemeansthemagnitudeofthevelocity,thepositiveandnegativeoftheverticalcoordinateisthe