![]() |
Creado por Emilia Taddonio
hace alrededor de 7 años
|
|
Pregunta | Respuesta |
Principle of the conservation of energy | Energy cannot be created or destroyed. |
Work Done, W (joules) = | force applied, F x distance moved along the line of action of the force, s |
Change in object's gravitational potential energy store = | weight, N x change of height |
ΔEp Change of gravitational potential energy store = | m g Δh mass x gravitational field strength x change in height |
Ek= Kinetic energy = | 1/2 m v^2 1/2 x mass x speed squared |
efficiency = | useful output energy transferred by the device __________________________ total input energy supplied to the device |
Problem: Friction between the moving parts causes heating.... how would you improve the efficiency? | LUBRICATE! |
¿Quieres crear tus propias Fichas gratiscon GoConqr? Más información.