Ishubhu le-Manometer - izinkinga nezixazululo

Ishubhu le-Manometer - izinkinga nezixazululo

1. Ishubhu le-manometer ligcwele izinhlobo ezimbili zoketshezi. Ubuningi boketshezi 1 bungu-ρ ₁ = 0.8 g.cm ^-3 , kanti ubuningi boketshezi 2 bungu-ρ ₂ = 1 g.cm ^-3 , kanye nokuphakama h ₁ = 10 cm, bese kuba yini ukuphakama kwe-h ₂.

Kwaziwa:

Ubuningi boketshezi 1 = 0.8 g.cm ^-3

Ubuningi boketshezi 2 = 1 g.cm ^-3

Ukuphakama 1 = 10 cm

Kufunwa: Ukuphakama 2

Isixazululo:

2. Ukuphakama kwamanzi kungu-50 cm, kanti ukuphakama kwezinye izinto eziwuketshezi kungu-30 cm. Kungakanani ubuningi bezinye izinto eziwuketshezi?

Kwaziwa:

Ukusheshisa ngenxa yamandla adonsela phansi (g) = 10 m/s²

Ukuphakama kwamanzi (h ₁ ) = 50 cm

Ubuningi bamanzi (ρ ₁ ) = 1.00 x 10 ³ kg/m ³ = 1000 kg/m ³

Ukuphakama kolunye uketshezi (h ₂ ) = 30 cm

Okufunwayo: Ubuningi bolunye uketshezi.

Isixazululo:

pa + ρ ₁ gh ₁ = pa + ρ ₂ gh ₂

1. Iyini i-manometer? Impendulo: I-manometer iyithuluzi elisetshenziselwa ukukala ingcindezi yamagesi noketshezi. Ngokuvamile ikala umehluko wengcindezi phakathi koketshezi olungaphakathi kwe-manometer nomoya ozungezile noma olunye uketshezi.
2. Isebenza kanjani i-U-tube manometer elula? Impendulo: I-U-tube manometer isebenza ngokusekelwe ekulinganiseni ingcindezi ekhishwa yikholomu yoketshezi ngokumelene nengcindezi yoketshezi olulinganiswayo. Uma kukhona umehluko ekucindezelweni, ikholomu yoketshezi izothuthela endaweni entsha, futhi umehluko wokuphakama ungasetshenziswa ukunquma umehluko wokucindezela.
3. Yimaphi amanzi asetshenziswa kuma-manometer? Impendulo: Uketshezi olujwayelekile lwe-manometric luhlanganisa i-mercury, amanzi, kanye namafutha. Ukukhetha uketshezi kuncike ekusetshenzisweni, ukuzwela okufunwayo, kanye nobubanzi bezingcindezi okufanele zilinganiswe.
4. Kungani i-mercury ivame ukusetshenziswa kuma-manometer naphezu kokuba inobuthi? Impendulo: I-Mercury iminyene futhi inesisindo esithile esiphakeme, okuvumela ukuphakama okufushane kwamakholomu kanye nemiklamo emincane ye-manometer ngomehluko ofanayo wokucindezela. Ayimanzisi ingilazi, okwenza ukufundwa kube okunembe kakhudlwana. Kodwa-ke, ubuthi bayo budinga ukuphathwa ngokucophelela kanye nokucatshangelwa kokuphepha kwemvelo.
5. Uyini umehluko phakathi kwe-manometer evulekile ne-manometer evaliwe? Impendulo: I-manometer evulekile inomkhawulo owodwa ovulekele emoyeni, futhi ilinganisa umehluko wokucindezela phakathi koketshezi oluhlolwayo kanye nomfutho womoya. I-manometer evaliwe, ngakolunye uhlangothi, inomkhawulo owodwa ovaliwe, ngokuvamile one-vacuum noma ingcindezi eyaziwayo, futhi ilinganisa ukucindezela okuphelele koketshezi.
6. Ingasetshenziswa kanjani i-manometer ukukala ijubane? Impendulo: Kusetshenziswa isimiso se-equation kaBernoulli kanye ne-Pitot-static tube, ingcindezi enamandla (ehlobene nejubane) kanye nengcindezi engaguquki ingalinganiswa. Umehluko wokuphakama ku-manometer uhambelana nengcindezi enamandla, engaguqulwa ibe yijubane.
7. Kungani kubalulekile ukuthi ithubhu le-manometer liqonde phezulu ngesikhathi sokulinganisa? Impendulo: Ukugcina ithubhu le-manometer liqonde phezulu kuqinisekisa ukuthi isisindo soketshezi lwe-manometric sisebenza ngqo phansi, futhi ukuphakama kwekholomu yoketshezi kumelela ngqo umehluko wokucindezela. Noma yikuphi ukuthambekela kungaletha amaphutha ekufundeni.
8. I-differential manometer ihluke kanjani kwi-U-tube manometer elula? Impendulo: I-differential manometer yakhelwe ukukala umehluko wokucindezela phakathi kwamaphuzu amabili ohlelweni loketshezi, kanti i-U-tube manometer elula ivame ukukala umehluko wokucindezela phakathi koketshezi nomoya.
9. Yimiphi imikhawulo yokusebenzisa i-manometer? ImpenduloAma-Manometer ayizinto ezincike ekudonseni amandla adonsela phansi, ngakho-ke kumelwe ahlale eqondile. Angase angafaneleki ekulinganisweni komfutho ophezulu kakhulu (kuye ngokuthi uketshezi olusetshenziswayo lusetshenziswa kanjani), futhi angazwela ekushintsheni kwezinga lokushisa okungathinta ukuminyana koketshezi.

10. Iyini i-manometer “yohlobo oluthile”? Impendulo : I-manometer yohlobo oluthile inomlenze owodwa onobubanzi obukhulu obizwa ngokuthi “umthombo.” Uketshezi olukulesi siphethu alukhuphuki noma luwe kakhulu ngokushintsha kwengcindezi, okwenza ukufunda kuncike kuphela ekushintsheni kokuphakama emlenzeni omncane. Lo mklamo ukhulisa ukuzwela kanye nokufunda kwe-manometer.