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做实验的英语作文

发表时间：2024-07-25 17:34:59 来源：网友投稿

Aircanpromotetheobjects

Experimentaltopics:airtopromotetheobjectsit?Wantthebeginningoftheexperiment:Wearesurroundedbyair,theadditiontoallowmove,plants,andthebody'snormalwork,butalsoasakineticenergy?Ifyoucannotbeabletosavealotofenergy,anddoesnotproduceharmfulsubstances?Experimentalequipment:atoytruck,aballoon,astraw,sometape,arubberband.Experiment:insertthestrawdidnotblowtheballoonwitharubberbandfixedtoensurethatfromthestrawtoblowtheballoonwillnotleak,andthenblowtheballoonfullofair,andhandpinchthestrawtopreventgasleakage.Thentapetheballoontoytruck(theoneendtowardthestraw).Finallyletgooftheexhaledairfromaballoontoseewhethertopromotethetoytruckforward.Experimentalresults:letgooftheballoonwheretheairflowtopromotethetoytruckforward.ExperimentalDescription:Whentheballoonfullofgaspressurethanatmosphericpressuregraduallyreleasetheair,willproducetheactionandreaction,sotomovesomethingforward.Untilthepressureinsidetheballoonandatmosphericpressure,whentheairisnolongerrelease,actionandreactionwilldisappear,theobjectwillbetohalt.Legendofexperiment:Ifreusablerechargeablebattery-poweredcompressedairengineinsteadofgasolineengines,notonlyenvironmentalprotection,energyconservation,andcheap,convenientandpractical.

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