Simba - matambudziko nemhinduro

Simba ndiro chiyero chinoitwa basa munguva yakatarwa. Pamasvomhu, simba ndiro chiyero chebasa/nguva.

P = W/t

Tsananguro: P = simba (Joule/yechipiri = Watt), W = basa (Joule), t = nguva yechinguva (yechipiri)

Zvichibva pachiyero ichi, zvinogona kugumiswa kuti kana mwero webasa wakawanda, simba rawo rinokura. Kune rumwe rutivi, mwero webasa udiki, simba rawo rinoderera. Mwero webasa unoreva mwero unoitirwa basa.

Simba i scalar. Chikamu cheSI chesimba ndiJoule/chechipiri. Joule/chechipiri = Watt (yakapfupikiswa saW), yakatumidzwa zita iri kuratidza rukudzo kuna James Watt. Chikamu cheumambo hweBritain chesimba i foot-pounds pasekondi.

Chishandiso ichi chidiki zvakanyanya kuti chishandiswe, saka chinoshandiswa simba guru remabhiza (rakapfupikiswa sehp). Simba rimwe chete remabhiza = 550 foot-pounds pasekondi = 764 Watts = ¾ kilowatt.

Huwandu hwebasa hunogonawo kuratidzwa mumagetsi x nguva, semuenzaniso, kilowatt-hours kana kWh. KWh imwe chete inoreva basa rinoitwa nechiyero chisingachinji che1 kiloWatt kweawa imwe chete.

1. A 50-kg munhu anomhanya kukwira masitepisi kukwirira kwemamita gumi in 2 maminitsi. Akukurumidza nekuda kwe giravhiti (g) i10 m/s². Sarudza iyo simba.

Zvinozivikanwa:

Misa (m) = 50 kg

urefu (h) = 10 meters

Kuwedzera nekuda kwegiravhiti (g) = 10 m/s²

Nguva yenguva (t) = 2 Mineti = 2 (60) = 120 chepiris

Wanted : simba (P)

Solution:

Fomura yesimba:

P=W/t

P= simba, W = basa, t = nguva

Fomura Yebasa:

W = F s = wh = mgh

W= basa, F = simba, w = uremu, d = kudzingiswa, h = urefu, m = huremu, g = kukurumidza nekuda kwegiravhiti

W = mgh = (50)(10)(10) = 5000 Joules.

P = W / t = 5000 / 120 = 41.7 Joules/second.

2. Verenga simba rinodiwa nemunhu anorema 60 kg anokwira muti wakareba mamita mashanu mumasekonzi gumi. Kukurumidza kwesimba nekuda kwegiravhiti i10 m/s².

Zvinozivikanwa:

Huremu (m) = 60 kg

urefu (h) = mamita mashanus

Kuwedzera nekuda kwegiravhiti (g) = 10 m/s²

Nguva yenguva (t) = 10 masekondi

Wanted : simba

Solution:

Basa:

W = mgh = (60)(10)(5) = 3000 maJoules

Simba:

P = W / t = 3000 / 10 = 300 Joules/semamiriro ezvinhu.

3. Mutambo wekusetsa unotenderera une simba rema watts mazana matatu nenguva yemaminitsi mashanu uchitenderera marounds mashanu. Simba raunoshandisa i….

A. 15 kJ

B. 75 kJ

C. 90 kJ

D. 450 kJ

Zvinozivikanwa:

Simba (P) = 300 Watts = 300 Joules/sekondi

Nguva (T) = maminetsi mashanu = 5 (masekondi makumi matanhatu) = masekondi mazana matatu

Nhamba yekutenderera = 5

Kuda: Simba rinoshandiswa nemutambo wekusetsa we "rotary comedy"

Solution:

Mhinduro chaiyo ndiD.

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1. Basa rakaitwa nechisimba matambudziko uye mhinduro
2. Matambudziko esimba rekushanda nemhinduro
3. Matambudziko nemhinduro dzesimba rebasa-remakanika
4. Matambudziko esimba rinogona kukweva simba uye mhinduro dzaro
5. Simba rinogona kuwanikwa mumatambudziko e elastic spring uye mhinduro dzaro
6. Matambudziko emagetsi nemhinduro
7. Kushandiswa kwekuchengetedza simba remakanika kuti kufamba kwemahara kuwa
8. Kushandiswa kwekuchengetedza simba remakanika pakufamba kumusoro nekudzika mukufamba kwemahara kwemvura
9. Kushandiswa kwekuchengetedza simba remakanika kuti rifambe pamusoro wakakombama
10. Kushandiswa kwekuchengetedza simba remakanika pakufamba mundege yakatsamira
11. Kushandiswa kwekuchengetedza simba remakanika pakufamba kwezviratidziro