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