Ukunyakaza Okuhlobene KukaNewton: Ukuqonda Umhlaba Ngombono Ohambayo
Ukunyakaza okuhlobene kungenye yemiqondo eyisisekelo ku-physics, okusisiza siqonde ukuthi izinto zihamba kanjani maqondana nombukeli ongase futhi ahambe. Igama elithi ukunyakaza okuhlobene empeleni libhekisela ekunyakazeni okulinganiswe endaweni ehlukile yokubhekisela. Sekuyiminyaka engaphezu kwamakhulu amathathu, lesi simiso sibe yingxenye ebalulekile yezindlela zakudala, ngenxa yeminikelo ebalulekile ka-Isaac Newton. Kulesi sihloko, sizohlola umqondo wokunyakaza okuhlobene kusukela embonweni waseNewtonian, kusukela eziyisisekelo zawo kuya ekusetshenzisweni kwawo empilweni yansuku zonke kanye nesayensi yanamuhla.
Izisekelo Zobuchwepheshe BaseNewtonian
Ngaphambi kokuba singene ekunyakazeni okuhlobene, kuyasiza ukuqonda izisekelo ze-mechanics yaseNewtonian. U-Isaac Newton wakha imithetho emithathu yokunyakaza eyakha umgogodla we-mechanics yakudala:
1. Umthetho Wokungabi Naso Isibindi: Into izohlala iphumule noma ihambe emgqeni oqondile ngesivinini esingaguquki ngaphandle kokuthi iphoqwe amandla angaphandle.
2. Umthetho Wesenzo Nokusabela: Ukusheshisa kwento kuhambelana ngqo namandla asetshenziswa kuyo, futhi kuhambisana ngokuphambene nobunzima bento.
3. Umthetho Wesenzo Nokusabela: Kuzo zonke izenzo, kukhona ukusabela okulinganayo nokuphambene.
Le mithetho emithathu, elawula indlela izinto ezihamba ngayo ngaphansi kwesenzo samandla, nayo yakha isisekelo sokuqonda kwethu ukunyakaza okuhlobene.
Kuyini Ukunyakaza Okuhlobene?
Ukunyakaza okuhlobene kuhilela ukubuka ukunyakaza kwento kusuka ezindaweni ezahlukene zokubhekisela. Isibonelo, ake uzicabange usesitimeleni esihambayo. Ngokombono wakho nowabanye abagibeli, kubonakala sengathi umile unganyakazi ngenkathi isitimela sihamba. Kodwa-ke, kothile omi ngaphandle kwesitimela (isibonelo, epulatifomu yesiteshi), uhamba nesitimela.
Lo mbono ohlukile ubonisa ukuthi ukunyakaza kuyahambisana; akukho ukunyakaza okuphelele. UNewton wayekuqonda lokhu futhi wakufaka ezimisweni zakhe ze-mechanics.
Izinhlelo Zokungasebenzi Nezingasebenzi
Ku-mechanics yaseNewtonian, izinkomba zokunyakaza zingahlukaniswa ngezigaba ezimbili: izinhlelo ze-inertial kanye nezinhlelo ezingezona ze-inertial.
Uhlelo Lokungasebenzi
Uhlelo lwe-inertial luhlelo lokubhekisela oluhamba ngesivinini esingaguquki, okusho ukuthi aluboni ukusheshisa. Kulesi simiso, imithetho kaNewton iyasebenza ngaphandle kokuguqulwa. Isibonelo, uma ababukeli ababili ezitimeleni ezimbili ezihamba ngesivinini esingaguquki bebona ukunyakaza kwebhola ezitimeleni zabo, bazobona ibhola lihamba ngokwemithetho kaNewton ngaphandle kokushintsha.
Uhlelo Olungeyona I-Inertial
Ngakolunye uhlangothi, uhlelo olungeyona i-inertial luyisistimu yokubhekisela edlula ekusheshisweni. Kulolu hlelo, imithetho kaNewton ayisebenzi ngokugcwele ngaphandle kokuthi sicabangele amandla-mbumbulu njenge-Coriolis force noma i-centripetal force. Isibonelo, uma usemotweni esheshisayo, uzozizwa ucindezelwe emuva.
Ukuguqulwa KwaseGalile
Esinye sezisekelo ze-mechanics yakudala yaseNewtonian yokuqonda ukunyakaza okuhlobene ukuguqulwa kweGalilean. UGalileo Galilei, owaphefumulela uNewton, wathi imithetho yefiziksi isebenza ngokulinganayo kuzo zonke izinhlelo ze-inertial. Ifomula yokuguqulwa kweGalilean isivumela ukuthi sisuke ohlelweni olulodwa lwe-inertial siye kolunye ngokungeza noma ukususa ijubane elihlobene phakathi kwazo.
Isibonelo, uma isitimela siya kwesokudla ngesivinini \(v\), bese othile ephonsa ibhola phambili esitimeleni ngesivinini \(u\) uma kuqhathaniswa nesitimela, khona-ke isivinini sebhola uma kuqhathaniswa nomhlabathi ngu \(u + v\). Lokhu kuguqulwa kuyasiza kakhulu ekuxazululeni izinkinga eziningi zokunyakaza okuhlobene kumishini yakudala.
Ukusetshenziswa kwe-Relative Motion kaNewton empilweni yansuku zonke
Ukuqonda ukunyakaza okuhlobene kunemiphumela ebanzi ezicini eziningi zokuphila kwansuku zonke kanye nobuchwepheshe. Nazi ezinye izibonelo:
Ukuzulazula kwesathelayithi
Amasathelayithi e-GPS ahamba ngesivinini esikhulu uma kuqhathaniswa nobuso boMhlaba. Ukuze anikeze ulwazi olunembile lwendawo, uhlelo lwe-GPS kumele lubheke imiphumela yokunyakaza okuhlobene, ikakhulukazi ukushintsha kwemvamisa okwaziwa ngokuthi umphumela we-Doppler. Ngaphandle kwalokho, indawo enikezwa amasathelayithi ingaba enganembile ngamamitha amaningana.
Ezokuthutha
Ukuphathwa nokwakhiwa kwezinhlelo zokuhamba, kusukela emigwaqweni emikhulu kuya ezitimeleni nasezindizeni, kudinga ukuqonda kahle ukunyakaza okuhlobene. Isibonelo, endaweni ephithizelayo yokuhlangana kwezimoto, ukuqonda ukuthi izimoto zihamba kanjani ngokuhambisana kungasiza ekugwemeni izingozi.
Ifiziksi kanye Nesikhala
Osomkhathi abase-International Space Station (ISS) bahamba ngesivinini esikhulu uma kuqhathaniswa noMhlaba. Ukuqonda ukunyakaza okuhlobene kubavumela ukubala ukuhamba okudingekayo ukuze bajikeleze noma bahlangane kahle nezinye izindiza.
Umehluko neTheory of Relativity
Abantu abaningi bavame ukudidanisa ukunyakaza okuhlobene kukaNewtonian nombono ka-Albert Einstein wokuhlobana kwezinto. Nakuba zombili zinikeza ukuqonda ukunyakaza okuhlobene, kunomehluko obalulekile phakathi kwazo.
Ubudlelwano Obukhethekile
Ithiyori ekhethekile ka-Einstein yokuhlobana kwezinto yaveza umqondo wokuthi hhayi nje isivinini esilinganiselwe, kodwa nesikhathi nendawo kuyathinteka yijubane lento esondela esivinini sokukhanya. Ohlakeni lwe-Newtonian, isikhathi sasibhekwa njengento engaguquki efanayo kubo bonke abaqapheli, kodwa u-Einstein wabonisa ukuthi isikhathi singahamba kancane uma siqhathaniswa nomqapheli osesimweni esisheshayo.
Ubudlelwano Okuvamile
U-Einstein wandisa nomqondo wokunyakaza okuhlobene ngenkolelo-mbono yakhe evamile yokuhlobana kwezinto, eyethula ithonya lamandla adonsela phansi ekugobekeni kwesikhala nesikhathi. Lokhu kwahluka kakhulu embonweni kaNewton, lapho amandla adonsela phansi ayebhekwa njengamandla asebenza ngokushesha "esikhaleni esiphelele."
Isiphetho
Ukunyakaza okuhlobene kuwumqondo oyisisekelo owasungulwa ngu-Isaac Newton futhi usekela izimiso eziningi ze-mechanics yakudala. Ukuqonda ukunyakaza okuhlobene kusenza siqonde ukuthi izinto zihamba kanjani futhi kunikeze izincazelo ezinembile ezinhlelweni ezahlukene zokubhekisela. Kusukela ekuguqulweni kwe-Galilean kuya ekusetshenzisweni kwayo kwansuku zonke, ukunyakaza okuhlobene kuhlala kufanelekile futhi kuwusizo ku-physics yakudala.
Naphezu komehluko omkhulu phakathi kwezindlela zakudala kanye nombono ka-Einstein wokuhlobana kwezinto, iminikelo kaNewton ekuqondeni kwethu ukunyakaza okuhlobene isalokhu iyingqophamlando ebalulekile emlandweni wesayensi. Kuze kube namuhla, umqondo wokunyakaza okuhlobene usiza abantu emikhakheni eyahlukahlukene, kusukela kubuchwepheshe bansuku zonke kuya ekuhloleni isikhala.
