I-physics

Umthetho wokuqala kaKirchhoff – izinkinga nezixazululo 1. Ngokusekelwe esithombeni njengoba kuboniswe ngezansi, uma u-I1 = 5A, u-I2 = 3 A, u-I3 = 6 A, khona-ke u-I4 = ……… Isixazululo: Umthetho wokuqala kaKirchhoff uthi isamba sayo yonke imisinga engena esivumelwaneni kumele ilingane nesamba sayo yonke imisinga ephuma esivumelwaneni. … Funda kabanzi

Amagagasi ajikelezayo nawase-longitudinal - izinkinga nezixazululo 1. Igagasi lihamba ngocingo olude oluyimitha ezintathu imizuzwana engu-0.3. Iyini inkathi yamagagasi? Ayaziwa: Isikhathi esiphakathi (t) = imizuzwana engu-0.3 Okufunwayo: Inkathi (T) Isixazululo: ubude obungu-1 = ama-crests angu-1 + imifudlana engu-1 Inkathi = 2 x 0.1 … Funda kabanzi

Amandla okuqina - izinkinga nezixazululo 1. Ibhloko yokhuni enobude = 2.5 m, ububanzi = 0.5 m kanye nokuphakama = 0.4 m. Ubuningi bamanzi buyi-1000 kg/m3. Uma ibhloko lifakwa emanzini, yimaphi amandla okuqina... Ukusheshisa ngenxa yamandla adonsela phansi kungu-10 N/kg. Kwaziwa: Umthamo … Funda kabanzi

25 Amandla kagesi – izinkinga nezixazululo 1. Isibani sikagesi esingu-220 V – 5 sisetshenziswa imizuzu engama-30. Sidinga amandla angakanani? Isixazululo: I-Voltage (V) = 220 Volts Amandla kagesi (I) = 5 Ampere Isikhathi (t) = imizuzu engama-30 = 30 x 60 seconds = 1800 seconds Amandla kagesi … Funda kabanzi

28 Amandla kagesi – izinkinga nezixazululo 1. Bala ugesi wesibani sama-Watt ayi-10 esenzelwe ama-Volt ayi-12. Akwaziwa: Amandla (P) = 10 Watt Voltage (V) = 220 Volt Okufunekayo: Ugesi wamanje Isixazululo: Amandla esibani = 10 Watt = 10 Joule/isekhondi Isibalo esingezansi sibonisa ubudlelwano phakathi kwe… Funda kabanzi

25 Injini ye-Carnot (ukusetshenziswa komthetho wesibili we-thermodynamics) – izinkinga nezixazululo 1. Injini isebenza phakathi kuka-1200 Kelvin no-300 Kelvin. Ingakanani ukusebenza kahle kwale njini? Eyaziwayo: Izinga lokushisa eliphezulu (TH) = 1200 K Izinga lokushisa eliphansi (TL) = 300 K Okufunekayo: Ukusebenza kahle (e) Isixazululo: 2. Injini isebenza phakathi … Funda kabanzi

30 Injini yokushisa (ukusetshenziswa komthetho wesibili we-thermodynamics) – izinkinga nezixazululo 1. Okokufaka ukushisa QH = 3000 Joules kanye nokokukhipha ukushisa QL = 1000 Joules. Kuyini ukusebenza kahle kwenjini yokushisa? Okuyaziwa: Okokufaka ukushisa (QH) = 3000 Joules Okokukhipha ukushisa (QL) = 1000 Joules Umsebenzi owenziwe yinjini … Funda kabanzi

Izinqubo ze-thermodynamics ze-Isobaric ezingu-30 - izinkinga nezixazululo 1. Umdwebo we-PV ongezansi ukhombisa igesi efanelekile edlula enkambisweni ye-isobaric. Bala umsebenzi owenziwa yigesi enkambisweni AB. Kwaziwa: Ukucindezela (P) = 5 x 105 N/m2 Umthamo wokuqala (V1) = 2 m3 Umthamo wokugcina (V2) = 6 m3 Okufunwayo: … Funda kabanzi

Izinqubo ze-thermodynamics ze-Isochoric ezingu-30 - izinkinga nezixazululo 1. Umdwebo we-PV ongezansi ukhombisa igesi efanelekile edlula enkambisweni ye-isochoric. Bala umsebenzi owenziwa yigesi enkambisweni i-AB. Isixazululo: Inqubo i-AB iyinqubo ye-isochoric (ivolumu eqhubekayo). Ivolumu ayiguquguquki ukuze kungabikho msebenzi owenziwa yigesi. … Funda kabanzi

Izinqubo ze-thermodynamic ze-Isothermal ezingu-30 - izinkinga nezixazululo 1. Umdwebo we-PV ongezansi ukhombisa igesi efanelekile edlula enkambisweni ye-isothermal. Bala umsebenzi owenziwa yigesi enkambisweni AB. Isixazululo Umsebenzi owenziwe yigesi ulingana nendawo engaphansi kwejika le-PV AB = indawo kanxantathu + indawo kanxantathu W … Funda kabanzi