Ifiziksi Yesikole Samabanga Aphezulu

Imibuzo eyisibonelo namafomula omsebenzi kanye nethiyori yamandla e-work-kinetic

Ibhizinisi

1. Umzukulu usunduza isihlalo sabakhubazekile sikagogo wakhe epaki eliyindilinga ngamandla angu-20 N, ububanzi bepaki bungama-7 m, umzukulu wenza umsebenzi ongakanani ngokushintshana okubili?

1. 0 joule
2. 1400 joule
3. 1540 joule
4. 1760 joule

Ingxoxo

Funda kabanzi

Imibuzo eyisibonelo namafomula emithetho kaNewton

Umthetho Wokuqala KaNewton

1. Umuntu usesiliftini esihamba ngesivinini esingaguquki sikhuphukela phezulu. Isisindo somuntu singama-800 N. Kungazelelwe ikhebula lensimbi elidonsa i-lifti liyaphuka, okwenza i-lifti iwe. Amandla avamile avela phansi esiliftini kumuntu ngaphambi nangemva kokuphuka kwekhebula lensimbi….

1. 800 N kanye no-0
2. 800 N kanye no-800 N
3. 1600 N kanye no-0
4. 1600 N kanye no-800 N

Ingxoxo

Funda kabanzi

Imibuzo yesibonelo namafomula amaVektha Aphumelelayo, AmaVektha kanye noBuningi beScalar

Imiphumela Yama-Vector Amabili Amandla

1. Izingane ezimbili u-A no-B basunduza ibhlogo, uma u-A esunduza ibhlogo eningizimu ngamandla angu-400 N no-B ngesikhathi esifanayo esunduza ibhlogo empumalanga ngamandla angu-300 N, khona-ke amandla avela ku-A no-B...

1. 100 N eningizimu
2. 100 N empumalanga
3. 500 N eningizimu-mpumalanga
4. 700 N eningizimu-mpumalanga

Ingxoxo

Funda kabanzi

Funda futhi ingxoxo yemibuzo yensimu kagesi kanye nezibonelo zemibuzo yensimu kagesi.

Ukuze kube lula ukuqonda amandla kagesi angasebenza kude, kwaqalwa umqondo wensimu. Umqondo wensimu kagesi wathuthukiswa usosayensi waseBrithani uMichael Faraday (1791–1867).

I-Pengertian

Ake sithi induku yengilazi ayisebenzi kahle ngogesi ekuqaleni. Ngemva kokuhlikihlwa ngendwangu, induku yengilazi ishajwa ngogesi. Lapho induku yengilazi ishajwa ngogesi , kuvela insimu ngasikhathi sinye izungeze induku yengilazi. Uma induku yengilazi ingasebenzi kahle, insimu iyanyamalala ngasikhathi sinye esikhaleni. Ngakho-ke ukuba khona kwensimu akuhlukaniseki nokuba khona kwenkokhelo kagesi. Insimu kagesi akuyona uhlobo lwento efana nomoya futhi akuyona uhlobo lwamagagasi afana namagagasi kagesi, kodwa yinto ekhiqizwa yinkokhelo kagesi futhi ithinta isikhala esizungeze inkokhelo kagesi, lapho ithonya layo lizwakala khona kuphela ngamanye amashaji kagesi.

Funda kabanzi

Esihlokweni mayelana nokushaja kagesi nezinhlobo zokushaja kagesi, kuchazwa ukuthi njengamashaja kagesi ayaxoshana kuyilapho ngokungafani namashaja kagesi edonselana. Ngamanye amazwi, izinto ezishajwe kahle zidonsela izinto ezishajwe kabi, izinto ezishajwe kahle zixosha izinto ezishajwe kahle, kanye nezinto ezishajwe kabi zixosha izinto ezishajwe kabi. Lesi simo sibonisa ukuba khona kwamandla kagesi asebenza ezintweni ezishajwe kahle kanye nezinto ezishajwe kabi. Yiziphi izici ezithonya ubukhulu bamandla kagesi phakathi kwezinto ezishajwe kahle?

Funda kabanzi

Uma wenze izivivinyo ezilula njengoba kuchaziwe ekuhlolweni kokushaja kagesi , kungenzeka ukuthi uke wakhangwa iqiniso lokuthi izinto zingadonselana noma zixoshane. Kungani izinduku zepulasitiki zixoshana kodwa zidonselene ngezinduku zeglasi? Uma uhlikihla ucezu lwepulasitiki ezinweleni ezomile bese ulusondeza ezingcezwini ezincane zephepha, ipulasitiki idonsela izingcezu zephepha. Kungani ipulasitiki idonsela nezingcezu zephepha ezazingagcotshwanga nganoma yini enye ekuqaleni? Uzoqonda futhi ukwazi ngisho nokuchaza izizathu zezehlakalo ezitholwa yingilazi, ipulasitiki, izingcezu zephepha, noma ezinye izinto njengoba kuxoxwe ngazo ngenhla, ngemva kokufunda isihloko sokushaja kagesi futhi waqonda incazelo engezansi.

Funda kabanzi

Zonke izinto ezikhona endaweni yonke zakhiwe ngama -athomu . Ama-athomu akhiwa ama-proton, ama-neutron, nama-electron. Ama-proton ashajwa kahle, ama-electron ashajwa kabi, kanti ama-neutron awashajwa. I-athomu iqukethe inani lama-electron, ama-proton, nama-neutron. Uma inani lama-electron lilingana nenani lama-proton, inani eliphelele likagesi ku-athomu lingu-zero. I-athomu enjalo ayithathi hlangothi ngogesi. Uma inani lama-electron lidlula inani lama-proton, i-athomu inama-electron amaningi, okwenza ishajwe kabi. Uma inani lama-electron lidlula inani lama-proton, i-athomu inama-proton amaningi, okwenza ishajwe kahle.

Funda kabanzi

2 Izibonelo zemibuzo yesathelayithi ye-geostationary

1. Amasathelayithi e-Geostationary noma amasathelayithi e-geosynchronous angamasathelayithi atholakala ku- iphuzu elilodwa nelifanayo ngaphezu kwe-equator yoMhlaba. Lawa ma-satellite asetshenziselwa ukudlulisa izimpawu zokuxhumana (i-TV, omakhalekhukhwini), izibikezelo zezulu, njalo njalo. Ziphakeme kangakanani ama-satellite e-geostationary ngaphezu kobuso boMhlaba?
G = ukungaguquguquki komhlaba wonke = 6,67 x 10^-11 N m²/ kg²
M = isisindo somhlaba = 5,97 x 10²⁴ kg
T = isikhathi sokuzungeza isathelayithi = Isikhathi sokuzungeza umhlaba = amahora angama-24 = 24 (imizuzwana engama-3600) = imizuzwana engama-86.400 = 8,64 x 10⁴ okwesibili

Funda kabanzi

Izibonelo ezi-3 zamagagasi kagesi

1. Amagagasi e-RADAR angamagagasi kagesi angasetshenziselwa….
A. Yazi izakhi zezinto ezibonakalayo
B. Ukufuna iminonjana yento
C. Pheka ukudla ngokushesha
D. Ukubulala amangqamuzana omdlavuza
E. Ukubulala amagciwane emishinini yezokwelapha
Ingxoxo
Impendulo efanele ingu-B.

Funda kabanzi

Izibonelo ezimbili zemibuzo yokunyakaza okujikelezayo

1. Into eyisilinda engenalutho (I = mR)²) ukugoqa ngaphandle kokushelela phezulu endizeni ethambekele emangelengeleni ngesivinini sokuqala esingu-10 m/s. Indizeni ethambekele ine-engeli yokuphakama engu-θ ene-tan θ = 0,75. Uma ukusheshisa ngenxa yamandla adonsela phansi g = 10 m/s^-2 futhi ijubane lento lehla laya ku-5 ms^-1 bese ibanga elihanjwa endizeni ethambekele yinto liyi….
A. 12,5 m
B. 10 m
C. 7,5 m
D. 5 m
E. 2,5 m

Funda kabanzi