Insimu kagesi kuyinto ebangelwa ukushaja kagesi futhi ithinta isikhala esizungeze ukushaja kagesi, lapho ithonya lensimu kagesi lizwakala kuphela ngamanye amashaja kagesi. Uma enye ishaja kagesi isensimini kagesi ebangelwa ukushaja kagesi, enye ishaja kagesi izwa ithonya ngesimo samandla kagesi.
Umqondo wensimu kagesi, njengoba kuchaziwe esihlokweni mayelana namasimu kagesi, ungaqondwa ngengqondo, kodwa futhi ungacatshangwa engqondweni kuphela. Ukuze kubonwe ngeso lengqondo insimu kagesi, kwethulwa imigqa yensimu kagesi. Imigqa kagesi Umugqa wensimu uwuchungechunge lwemigqa edwetshwe izungeze ishaja kagesi ukukhombisa ukuba khona kwensimu kagesi. Ngenxa yokuthi inhloso yalo mugqa ukukhombisa ukuba khona kwensimu kagesi, kukhona ubudlelwano phakathi kwale migqa nensimu kagesi. Ngamanye amazwi, ubukhulu kanye nesiqondiso sensimu kagesi kungachazwa ngomdwebo wemigqa yensimu kagesi.
Okulandelayo ubudlelwano phakathi kwesiqondiso namandla ensimu kagesi kanye nemigqa yensimu kagesi:
I-Pertama, indlela eya ensimini kagesi ikude nokushaja okuhle nokuya ekushajeni okungekuhle. Ngakho-ke, indlela eya emigqeni yensimu kagesi nayo ikude nokushaja okuhle nokuya ekushajeni okungekuhle. Uma ishaja enhle iseduze nokushaja okubi, imigqa yensimu kagesi iboniswa njengesukela ekushajeni okuhle nokuya ekushajeni okungekuhle. Ngokuphambene nalokho, uma ishaja enhle iseduze nokushaja okubi, imigqa yensimu kagesi iboniswa njengesukela ekushajeni okuhle nokungakuhle.
I-Kedua, amandla ensimu kagesi amelwa yibanga eliphakathi kwemigqa yensimu kagesi. Uma ibanga eliphakathi kwemigqa yensimu kagesi lisondela, amandla ensimu kagesi aba makhulu futhi ibanga eliphakathi kwemigqa yensimu kagesi liyanda, amandla ensimu kagesi aba mancane.
Kungani imigqa iseduze, kulapho insimu kagesi iqina khona? Ukuze uqonde lokhu, cabangela incazelo elandelayo. Ake sithi ishaja enhle iphakathi nendawo yendilinga futhi imigqa yensimu kagesi ikhanya ngaphandle ngezindlela ezahlukene, ingena ebusweni bendilinga. Uma inani lemigqa yensimu kagesi lingu-N futhi indawo yobuso bendilinga ingu-4πr2 khona-ke inani lemigqa ngeyunithi ngayinye noma ubuningi bomugqa yi-N/4πr2Ngokusekelwe kule fomula, ku-N efanayo, uma u-r emncane khona-ke ibanga eliphakathi kwemigqa liseduze futhi uma u-r emkhulu khona-ke ibanga eliphakathi kwemigqa liyaqhubeka. Ifomula yamandla ensimu kagesi yi-E = kq/r2 futhi kukhombisa ukuthi amandla ensimu kagesi alingana ngokuphambene nesikwele sebanga. Uma u-r emncane, amandla ensimu kagesi makhulu, kanti u-r emkhulu, amandla ensimu kagesi mancane.
Ngokusekelwe ekubuyekezweni okungenhla, kungaphethwa ngokuthi uma u-r emncane (eduze nokushaja), amandla ensimu kagesi makhulu futhi ibanga eliphakathi kwemigqa nalo liseduze. Ngokuphambene nalokho, uma u-r emkhudlwana (kude nokushaja), amandla ensimu kagesi mancane kanti ibanga eliphakathi kwemigqa nalo likude.
I-Ketiga, inani lemigqa yensimu kagesi lilingana namandla ensimu kagesi. Uma imigqa yensimu kagesi iyanda, kulapho amandla ensimu kagesi eba maningi khona. Uma imigqa yensimu kagesi imbalwa, kulapho amandla ensimu kagesi eba mancane khona.
Isibonelo sezinkinga
1. Imibuzo Yokuhlolwa Kazwelonke Ye-SMA Physics ka-2012/2013 SA 55 No. 28
Kusukela esithombeni esilandelayo sokushaja, esibonisa ukuthi imigqa yamandla kuma-charge amabili asondelene kakhulu...
Ingxoxo
Imigqa yamandla kagesi, noma imigqa yamandla, idonswa kusukela ekushajeni okuhle kuya ekushajeni okubi. Uma ukushaja okuhle nokubi kuhlanganiswa ndawonye, imigqa yamandla ivela njengasempendulweni A.
Impendulo efanele ngu-A.
2. Imibuzo Yokuhlolwa Kazwelonke Ye-SMA Physics ka-2012/2013 SA 60 No. 28
Amashaja amabili kagesi asondezwa ndawonye entanjeni yokuxhuma, okuholela entanjeni kagesi. Isithombe esifanele sithi…
Ingxoxo
Impendulo efanele ngu-D.
3. Imibuzo Yokuhlolwa Kazwelonke Ye-SMA Physics ka-2012/2013 SA 65 No. 28
Imigqa efanele yamandla phakathi kwamacala amabili…
Ingxoxo
Impendulo efanele ngu-D.
