the energy needs of a society depend on wood to provide the basic cooking and
heating requirements of village life, or on the immensely varied fuel mix of
the industrialized nations with their highly complex production and distribution
systems, civilization is impossible without an adequate energy supply. In industrialized
societies the situation is further complicated by the competition between the
use of fossil fuel as an energy source and their vital role as raw materials
for the pertochemical industries, which produce plastics, fertilizers, animal
feedstocks, pharmaceuticals, and industrial gases. Thus the so-called energy
problem has implications for the whole structure of modern societies.
resources are those which will replenish themselves naturaly in a relatively
short time and will therefore always be avialable. They include:
here to make Falling Objects
Energy - which arises through the leakage of heat from the Earth's interior
to the surface. Turbine generator worked through the heat of water coming
from underneath the earth. While the turbine is working, mechanical energy
Power - the energy coming from water. Dams are built and when water pass through
here, the mechanical energy from the turbines produces electricity.]
Energy - the energy coming from the heat of sun, can be used to produce electricity
by means of solar cells or panels.
Power - the windmills produced mechanical energy when blown by wind. The mechanical
energy produced here is the one that produces electric energy, like other
sources of energy.
Energy - energy from bio fuels such as:
and industrial refuses