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Iqukethe izikhangiso

Mayelana nalolu hlelo lokusebenza

Ku-physics, amandla impahla eyisilinganiso okufanele idluliselwe entweni ukuze yenze umsebenzi, noma ukufudumeza into. Amandla ayinani eligciniwe umthetho wokongiwa kwamandla uthi amandla angaguqulwa abe yifomu, kepha angadalwa noma abhujiswe. Iyunithi ye-SI yamandla yi-joule, okungamandla adluliselwe entweni ngomsebenzi wokuyihambisa ibanga elingu-1 imitha uma iqhathaniswa namandla we-1 newton.

Izinhlobo ezivamile zamandla zifaka amandla e-kinetic ento ehambayo, amandla angahle agcinwe yisikhundla sento emkhakheni wamandla (amandla adonsela phansi, ugesi noma uzibuthe), amandla okunwebeka agcinwa ngokwelula izinto eziqinile, amandla amakhemikhali akhishwa lapho uphethiloli uvutha , amandla akhazimulayo aphethwe ukukhanya, namandla ashisayo ngenxa yethempelesha yento.

IMisa namandla zihlobene kakhulu. Ngenxa yokulingana kwamandla amaningi, noma iyiphi into enesisindo lapho imile (ibizwa ngokuthi i-rest mass) nayo inenani elilinganayo lamandla ifomu lalo libizwa ngokuthi amandla okuphumula (kulelo luhlaka lwesethenjwa), nanoma yimaphi amandla angeziwe (kwanoma yiluphi uhlobo) atholakele ngento engenhla ukuthi amandla okuphumula azokhulisa isisindo sento njengoba nje ikhulisa amandla ayo wonke. Isibonelo, ngemuva kokushisa into, ukukhuphuka kwayo kwamandla kungalinganiswa njengokukhuphuka kwesisindo, ngesikali esibucayi esanele.

Izinto eziphilayo zidinga amandla atholakalayo ukuze zihlale ziphila, njengamandla atholwa abantu ekudleni. Impucuko yabantu idinga amandla ukuze isebenze, etholakala ezinsizakalweni zamandla ezinjengezibaseli, uphethiloli wenuzi, noma amandla avuselelekayo. Izinqubo zesimo sezulu somhlaba kanye ne-ecosystem ziqhutshwa ngamandla akhazimulayo uMhlaba awathola elangeni nasemandleni okushisa komhlaba aqukethwe emhlabeni.