Ifiziksi Yesikole Samabanga Aphezulu

Akuzona zonke izinto esihlangana nazo ekuphileni kwansuku zonke ezihlala ziphumule. Into ingase iphumule ekuqaleni, kodwa uma ishukunyiswa, ingashukuma. Umbuzo uwukuthi ingabe ibuyela endaweni yayo yokuqala noma cha ngemva kokunyakaza. Lokhu kuncike ekushukumeni. izinhlobo zokulinganisela izinto okwesithathu.
Uma into ephumule ihlangabezana nokuphazamiseka (kukhona amandla avelayo noma umzuzu wamandla ophumelayo osebenza entweni) khona-ke into izohamba. Ngemva kokuhamba, kuzoba namathuba amathathu, okungukuthi: (1) into ibuyela endaweni yayo yokuqala, (2) into isuka endaweni yayo yokuqala, (3) into ihlala endaweni yayo entsha. Uma ngemva kokuhamba, into ibuyela endaweni yayo yokuqala khona-ke into isendaweni yayo yokuqala ukulingana okuzinzileUma ngemva kokuhamba, into iqhubekela phambili isuka endaweni yayo yokuqala, khona-ke into ingaphakathi ibhalansi engazinzileNgakolunye uhlangothi, uma ngemva kokuhambisa into ihlala endaweni yayo entsha, khona-ke into isesimweni sayo esisha. ibhalansi engathathi hlangothi.

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2 Izibonelo zemibuzo yokulingana kwezinhlayiya

1. Into enesisindo esingu-10 kg ilenga entanjeni. Thola ukucindezeleka entanjeni (T)! g = 10 m/s²
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Izibonelo ezi-5 zemibuzo yomsebenzi wamandla e-kinetic kanye nefiziksi

1. Imoto enesisindo esingu-5000 kg iqala ingashintshi, bese ihamba ngesivinini esingu-20 m/s. Thola umsebenzi ophelele owenziwe emotweni...
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I-Diketahui :
IMisa (m) = 5000 kg
Ijubane lokuqala (v)_o) = 0 m/s (ekuqaleni imoto ayimi)
Ijubane lokugcina (v)_t) = 20 m/s
Kubuziwe : Umzamo ophelele

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Izibonelo eziyi-15 zemibuzo yezimiso eziyisisekelo zabamnyama

1. Iqhwa elinesisindo esingu-0,2 kg lixutshwa netiye elifudumele elinesisindo esingu-0,2 kg. Izinga lokushisa leqhwa = – 10^oC, izinga lokushisa letiye elifudumele = 40^oC. Ukushisa okuqondile kweqhwa = 2100 J/kg C^o, ukushisa kwamanzi okuthile = 4200 J/kg C^o, ukushisa kokuhlanganiswa kwamanzi = 334.000 J/kg. Uma iqhwa netiye elishisayo kuxutshwe ohlelweni oluvaliwe oluhlukanisiwe, nquma izinga lokushisa lokugcina lengxube.

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I-Diketahui :
Isisindo seqhwa (m es) = 0,2 kg
Isisindo samanzi etiye afudumele (itiye m) = 0,2 kg
Ukushisa kwamanzi okuqondile (c amanzi) = 4180 J/kg C^o
Ukushisa okuqondile kweqhwa (c es) = 2100 J/kg C^o
Ukushisa kokuhlanganiswa kwamanzi (L)_f amanzi) = 334.000 J/kg

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Izibonelo ezi-5 zokufuduka kwe-angular kanye nokufuduka okuqondile ekuhambeni okujikelezayo

1. Isondo elinobubanzi obungamasentimitha angu-30 lijikeleza ibanga elingama-radian ayi-10. Iphuzu eliseceleni kwesondo lihamba ibanga elingakanani?
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Ibanga eliphakathi komphetho wesondo kanye nesikhungo sesondo = irediyasi yesondo.
Kuyaziwa ukuthi:
Irediyasi (r) = 30 cm = 0,3 amamitha
Ikona (umamkhulu) = ama-radian angu-10
Kubuziwe: ibanga elihanjiwe (ama)
Impendulo:

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2 Izibonelo zemibuzo yokunquma i-vector ephumelayo kusetshenziswa ama-vector ezingxenye

I-1. F₁ = 6 N, F₂ = 10 N. Umphumela wamavektha amabili amandla u…

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F_1x =F₁ ibe 60^o = (6)(0,5) = 3 N (enhle ngoba isendleleni elungile x)
F_2x =F₂ ibe 30^o = (10)(0,5√3) = 5√3 = (5)(1,372) = -8,66 N (engemihle ngoba isendleleni engemihle x)
F_1y =F₁ ngaphandle 60^o = (6)(0,5√3) = 3√3 = (3)(1,372) = 4,116 N (enhle ngoba isendleleni enhle ka-y)
F_2y =F₂ ngaphandle 30^o = (10)(0,5) = -5 N (engemihle ngoba isendleleni engemihle ka-y)

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2 Izibonelo zemibuzo mayelana nokunquma izingxenye zevektha

1. Ivektha yamandla F = 20 I-Newton yakha i-engeli engu-30^o ku-x-axis enhle. Thola izingxenye zevektha u-F ku-x-axis (F)_x) kanye ne-y-axis (F_y).

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F_x = F cos 30^o = (20)(cos 30^o) = (20)(0,5√3) = 10√3 AmaNewton

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I-Pelajari isibonelo sokuphazamiseka kanye nokusabalala kokukhanya - umngxuma owodwa, bese usebenza ekuphazamisekeni nasekuphazanyisweni kwezinkinga zokukhanya.

1. Ukukhanya okunobude be-wavelength obungu-700 nm kudlula embotsheni enobubanzi obungu-0,2 mm. Iphethini yokusabalalisa esikrinini ikude ngamasentimitha angu-50 ukusuka embotsheni. Thola ibanga phakathi komugqa wesibili omnyama nomugqa wokukhanya oyinhloko.
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I-Pelajari isibonelo sokuphazamiseka kanye nokusabalala kokukhanya – i-diffraction grating , bese usebenza ekuphazamisekeni nasekuphazanyisweni kwezinkinga zokukhanya.

1. I-diffraction grating enemigqa engu-4000 njalo nge-1 cm ifakiwe ebangeni elingamamitha angu-1 ukusuka endaweni ekhanyisiwe. Bala ubude bokukhanya uma isithombe esiphezulu se-oda lokuqala singama-30 cm ukusuka endaweni ekhanyisiwe.
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Kuyaziwa ukuthi:
d = 1 / (imigqa engu-4000 / cm) = 0,00025 cm = 2,5 x 10^-4 cm = 2,5 x 10^-6 m
l = 1 m
y = 30 cm = 0,3 m
Kubuziwe: ubude be-wavelength (lambda)

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