Physics of Energy: Types, Sources, Work, and Power Calculations

Enerxia TYPES: Mechanical: é a Enerxia associated movemento two Corpos ao ou a position that you are busy. Enerxía kinetics; posuena feito polo Corpos you to be in movement. E. Gravitational potential; posuena feito polo Corpos you to be at a height above surface certa da terra. E. Potential elastic posuena Corpos you da elastic deformation because they experienced. Chill: ea form of flue qeu Enerxia dun outro corpo ao entre eels Cando unha temperature difference exists. Quimica: posuena all substances as nature gives, because forza coa that are joined to form molecules or atoms seus. Radiant: ea that posuer as electromagnetic radiaccions as light, solar Enerxia ea mais importante.Electrica: ea that possesss a corrente electrica. Nuclear: be two atomic nuclei. Cando manifest estes divide (fission) ou are joined (fuison). For neutral and be united together to form protons or nuclei. FONTES DE Enerxia: Non-renewable: coal, oil, natural gas, fusion and fission. Ventaxes: enerxético moi profitable Enerxia continuously supplied, easy e pouco expensive to extract raw materials and exploit it. I n convinto s: esgotar, high environmental impact .. Renewables: hydro, wind, solar (solar thermal panels and plcas photo soltaicas) mereomotriz, biomass, xeotermica.Vantaxes: limpa non finishes, autonomy. Inconvintes: intermittent (especially solar and wind) pouco enerxético profitable.

ENERGY CONSERVATION. Principle of conservation of energy: energy is not created and not destroyed, only an energy transforms into another type of energy.
WORK .* For there to work, the applied force must produce displacement.
W = F * Ax F: thrust. Ax: displacement W: effort (work)
* Units in Joule (J) 1J = 1Newton * 1metro
POWER: work done by a unit time.
P = W / t * Unit 1W = 1J/1s 1HP = 736Newtons.
Kinetic energy: KE = 1/2m * v2
Potential energy: Ep = m * g * h
* When this force acts on a moving body is doing work and this work can have two consequences: Change or variation of Ep Ec
MACHINES: Lever F1 * d1 = F2 * d2 .... Lathe F1 = F2 * R * r (F2 = normal weight)
Rendemento: Ro = Wutil / WSuministrado 0 <RO <i