Renewable energy source.........
Coal
Water
Wind turbine output
............It is a liquid renewable resource of energy.
The sun
............It was used to grind grain
Greenhouse
Turbines
Windmills
.........Convert kinetic energy into electrical energy.
Solar panels
Curved mirrors
...........Its light energy changes into chemical energy in plants.
The fan
Benzene
..........It is a liquid that can be used as a fuel for cars.
...........It needs extreme heat and pressure to be formed from remains of dead plants.
..........use in cooking food by converting solar energy into heat energy.
...........It helps to grow crops that only grow in warm climates
................When it increases, the stored potential energy increases.
The object ́s height from the earth ́s surface.
The object ́s mass.
The velocity of a moving object.
............It is operated by electricity.
...........Convert kinetic energy into electrical energy
...........From the safety devices inside the cars
Airbag
...........Non-renewable energy source
............use to generate electricity from solar energy
............It is the main resource of energy on the Erath ́s surface.
Non-renewable energy source ....
............Energy does not destroy , but transforms from one form to another
Law of conservation of energy
..........Electrical energy
...........the potential energy equals zero.
On the Earth ́s surface,