Please enable JavaScript.
Coggle requires JavaScript to display documents.
Energy (Renewable Energy (Will not run out) (Sun (Solar cells generate…
Energy
-
Power
-
-
-
A powerful machine is not necessarily one which can exert a strong force ( although it usually ends up that way)
Because lets say we have 2 machine , machine 1's power is 20 W and machine 2's power is 30 W, machine 2 obviously output larger energy but they both can transfer the same amount of energy but in different time duration, but in a second machine 2 exert a stronger force than machine 1, but both can transfer 60 joules of energy.
-
-
Efficiency
How good a device is at transferring energy input to useful energy output is called efficiency.A very efficient device will waste very little of its input energy. A very inefficient device will waste most of its input energy.
-
-
-
-
-
-
Conservation of energy
Energy can be transferred usefully, stored or dissipated, but can never be created or destroyed
-
-
-
