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1、高三物理研讨会High3physicsseminarThethreemiddleandhighschoolgroupsinchangzhoucityTheuseofbasicinstrumentsPropositionaltrendofthetestinFromtheperspectiveofstatisticsandanalysisrecentyears,physicalexperimentexaminationonsomeneworprinciplechanges,butwhethertheexperimentaldesign,analysis,oft
2、eninvolvestheuseofthebasicinstrument.Therefore,theuseofinstrumentsisthebasisoftheexamination.Theprinciple,usemethod,attentionandreadingofsomebasicinstrumentshaveappearedinhightestquestionsinrecentyears・Themeasurementoflengthandcircuitquantityandtheuseofrelevantinstrumentsarethemos
3、tfrequentpointsofknowledge・Forexample,thereadingoftheverniercalipersandthespiralmicrometerhasbeentestedsixtimesinthenationalcollegeentranceexaminationinnearly10years,oftenwiththealternateexaminationoftheverniercalipersandthespiralmicrometer・Voltmeter,ammeter,andohmmethodaremorelik
4、elytobetested.Inaddition,theuseoftimerandstopwatchalsosometimesappears・Theexaminationofthebasicapparatusinthecollegeentranceexamination,themorenumerousquestionsarethefillintheblanksandthegraphquestions,sometimesalsohavethechoicequestion.Hasatendencytophysicalconnectioncircuitdiagr
5、amofthecollegeentranceexaminationquestions,thepurposeofthisclassproblemsetischeckammeter,voltmeter,sliderheostatandotherequipmentoperationanduseofthemethod.KnowledgesummaryThebasicinstrumentisadevicethatisversatileandisusedinallkindsofexperiments・Inhighschool,thebasicinstrumentsre
6、quiredareasfollows:Measuringthelengthoftheinstrument,thescale,theverniercalipers,thescrewmicrometerTheinstrumentofmeasuringqualityscaleTheinstrumentformeasuringtimeatimer,astopwatchTheinstrumentofmeasurement--thespringscaleAthermometerformeasuringtemperatureMeasuringtheinstrumento
7、felectrology,thecurrentmeter,voltmeter,multi-meterElectricalcontrolinstrumentsliderheostat,rheostat,switchFortheseinstruments,understandthestructureprinciple,specificationandmainparameters,knowinghowtousemethods,considerations,readings,andaccuracy.Understandhowtheinstrumentworks・T
8、hiswillenableustousetheinstrument
