photons
Yes, it is a power source, because it carries energy from the main lines directley into a house.
solar energy
The matter that waves use to transfer energy is called the medium. The medium actually carries the energy of the wave. Sound is a good example of mechanical energy, and it requires a medium to travel. The energy created at the source is transferred into the medium, and the medium carries it forward in transmission (propagation).
Coal
carbohydrates
Yes, it is a power source, because it carries energy from the main lines directley into a house.
solar energy
solar energy
The matter that waves use to transfer energy is called the medium. The medium actually carries the energy of the wave. Sound is a good example of mechanical energy, and it requires a medium to travel. The energy created at the source is transferred into the medium, and the medium carries it forward in transmission (propagation).
If the color (frequency, wavelength) of each is the same, then each photon carries the same amount of energy. Three of them carry three times the energy that one of them carries.
Sun.
Coal
carbohydrates
energy source :)
Sunlight is the most important energy source in an oxygen carbon dioxide life cycle.
green energy source
The term clean source of energy refers to only primary energy sources as wind or solar energy. Electricity, by definition, is not a primary energy source. It is a secondary energy source that is could be produced by a clean energy source as wind or any renewable primary energy source or produced by fossil energy source as oil, natural gas, or coal.