Ezinyakazayo Translational

Uyini entuthukweni? encwadini ethi ISikole ihlangabezana ngokucacile ukuba lo mbuzo: ukunyakaza phambili komzimba (Inothi, into enhle - "umzimba ngokuphelele okuqinile" -! ATT, elingenalo yiluphi uhlobo kwakunokwenzeka ukuba zikhubazekile) - kuba ukunyakaza lapho yimuphi umugqa oqondile ungenisa uhlala parallel ngokwalo ngesikhathi sonke ukunyakaza phakathi nomzimba (ATT).

Impendulo ibonakala oluphelele. Incazelo unikezwa, futhi kwi-ajenda esivuna Translational ezinyakazayo kinematics. Ekuqaleni, lokhu kwenzeka olula ngokunyakaza iyunifomu rectilinear, bese - (! Futhi ngokuqinile lwento) eyinkimbinkimbi kakhulu futhi luthandeke bebuza izingqondo ravnoperemennoe ukunyakaza, sibonelo esigqamile okuyinto ukuwa khulula zemizimba. Ngaphansi kwalesi sigaba, umfundi eya ngokuya ebazi amaphethini ezithakazelisayo, kushiwo kanje:

1. Indlela bahamba umzimba phezu ngezikhawu ngokulandelana zihlobene njengoba izigcawu izinombolo yemvelo: 1: 4: 9: 16 ...

futhi

2. Izindlela siwela umzimba ngesikhathi ngokulandelana alinganayo zinkathi, kuthiwa kwehlisa njengoba uchungechunge lwezinombolo lingalingani: 1: 3: 5, 9 ...

Ekuxazululeni izinkinga kwenzeka kuzona ngokwazo lezi edingekayo amathuluzi methodological ezibalo, indlela ezithakazelisayo reversibility motion, lapho yonke idatha yokugcina kukhona kokuqala noHezekeli (ukunyakaza njengoba kwenzeka kolunye uhlangothi, kanye Countdown). Dynamics of the ephambene we leso Isivinini Vector yenqubo nhlobo amaphuzu ngendlela eqondileyo ekushintsheni isiqondiso salo ingashintshiwe kuphela isiqondiso Vector ukushesha, zofuzo elihlobene ne nomphumela Vector ka wonke amabutho isetshenziswa emzimbeni.

I "Dynamics of ezinyakazayo komugqa" kanye kinematics, a priori kusho ukuthi ukunyakaza komzimba kuyinto ngokuqinile lesichubekako, ngaphandle siguquke iyiphi ahlangene uhlobo kwaba. Kungenxa yokuthi lokhu izimo zangaphambi ecacisiwe kungenziwa dengwane Usayizi umzimba umsebenzi, ucabangela esikhundleni into enhle - iphuzu impahla (MT) kukhona spatially coincident ne maphakathi gravity (CG) komzimba. Nokho, MT luhlobo ngaphambili afakwe "Kinematics" ngoba ezimweni lapho ubukhulu umzimba kungenziwa dengwane eqhathaniswa obuphelele endleleni.

imithetho Yokuzivikela kunjalo motion rectilinear futhi kubhekwe ngaphansi kwezimo lapho thina abstract kusukela Ukujikeleza okungenzeka umzimba ngokubeka ukunyakaza kwakhe okuqhubekayo (ngenye bekuyobhekwa njengento ukuguqulwa okuhambisanayo ukunyakaza ukujikeleza ibe amandla amandla motion phambili bese ukuhlanekezela)

Kafushane, ngale ndaba kuyi-physics esikoleni Yiqiniso ukuphokophela phambili (esinda lalimelela icala ekhethekile motion kanye umugqa oqondile!) Inikeza ukudla eside lekucabanga ucwaningo theory. Awukwazi ukusho mayelana ingxenye yokuhlola Yiqiniso esikoleni ukuthi etadisha entuthukweni. Qualitative isethaphu zokuhlola kumane lingekho emakilasini kakhulu.

Ngisho ibe yintfo lekhetsekile uqonde ukunyakaza phambili sifundwa ikakhulukazi ngemcondvo. Yiqiniso, akubona ithoyizi, umshini Atwood nzima futhi ngokushesha ehlatshwa abafundi into eziyibonayo, ezifakwayo endaweni ethile unomphela engxenyeni ekude ye-physics iKhabhinethi. Imashi amayunithi ezifana beya ogwini wire welulela ngokuphelele wezimpahla lutho, ngoba kuphindaphindeke oludonsa uma motion rectilinear, engesiyo ncamashí ezinyakazayo Translational esimweni jikelele. Yini-ke ungase ukuncoma? ucwaningo kuphela yosesho ngokoqobo ezizungezile angaphezu physics laboratory usebenzisa Wit yemvelo!

Beqhutshwa uyisibonelo yephuzu isondo Ferris ( "kaDeveli Wheel"), usebe futhi kabani spokes enze ukunyakaza ukujikeleza, nokuqaphelisisa amadokodo lihamba kancane kancane (! Siqala kumbuthano) kuyasiqinisekisa ukuthi entuthukweni ATT (futhi cishe - umzimba zangempela) kungaba hhayi kuphela kuqondile, kodwa futhi ibe phi dlela lwalugobile (kuleli cala typology kuvumelana trajectory of the ukunyakaza ukujikeleza we MT).

Umqondo ekutholeni amacala entuthukweni ku lokudlala (kwimodi zokuhlola hhayi i-agumenti theory) "itholakala endaweni ethile eseduze" ne "wheel Ferris". Esekwazi lokudlala, siyokwazi ukuhlola ukuthi izinsalela zifana kuya uqobo ngqo (eyenziwe yinoma yimuphi kwegatsha noma lath mncane) we ukunyakaza komzimba kuzo zonke izinhlobo senhliziyo, ezithuthelayo futhi simulators. Kusobala ukuthi ngeke kube khona okuqhubekayo ngaphandle uma ukuwa komgwamanda ezingaphili, wadabula abanye "Uhlaka ukugibela".

Ukuqinisekisa ukuthi i-okumsulwa Translational ukunyakaza uvame ezitholakala emvelweni njengoba icala ekhethekile - le phambili ezinyakazayo yomugqa, thina ukukhanyisa-heartedly ungakwazi uqhubekele impahla ezincwadini incwadi yesikole.