I-joule iyiyunithi yokulinganisa.
impendulo: amandla
I-joule iyiyunithi yokulinganisa ku-physics namakhemikhali, eyaqanjwa ngokuthi kuhlonishwa usosayensi oyiNgisi u-James Prescott Joule ngokuthola ubudlelwano phakathi komsebenzi owenziwe namandla. Kuyiyunithi yomsebenzi, amandla kanye nokushisa okumelelwa uphawu "J". Ijoule eyodwa ilingana ne-newton engu-1 imitha futhi isetshenziselwa ukukala umsebenzi namandla. Umsebenzi namandla kukalwa ngamayunithi omsebenzi, amandla kanye nezinga lokugeleza kwevolumu. I-joule iyunithi yokulinganisa esekelwe kusistimu yemethrikhi engasetshenziswa ukukala kokubili umsebenzi namandla. Ijoule elilodwa lilingana nenani lomsebenzi owenziwe lapho usetshenziswa. Ngakho-ke, i-joule iyithuluzi elibalulekile lokuqonda ukuthi amasistimu omzimba asebenzisana kanjani nokuthi angakanani amandla awasebenzisayo noma akhululayo.
