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