ENERGY
What
is energy?
Energy is the capacity
of a physical system to perform work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, electrical, or other forms.
There are Non-renewable and Renewable energies
sources.
The Non-renewable ones are:
·
Coal
·
Oil
·
Natural gas
·
Nuclear
Oil is the main source of energy about the world and
it comes from far underground.
Natural
gas is found in most of
the world where “natural” means a gas
formed by natural processes in the earth.
Nuclear energy uses the power of the atom to create steam
power which is used to generate electricity. Nuclear power plants produce waste
dangerous to human health and environment.
·
Wind
·
Solar
·
Water
·
Geothermal
Wind power is a source of
energy for electricity production
developed recently.
Solar power means energy from the sun, it’s used to
generate electricity.
Water power is one of the oldest sources of energy in
human history, it’s also called hydropower.
The term “geothermal”
means “heat from the earth”, it’s very
efficient and doesn’t hurt the
environment and the sources occur near the volcanoes.
Energy world problems
The world’s population
is growing very quickly, most of the energy used today is still based on
burning fossil fuels; the traditional energy sources are going to
extinguish and unfortunately people are wasteful with their energy use.
It's hard to imagine life without electricity. In our
homes, we rely on it to power our lights, appliances, and electronics. Many of
us also use electricity to provide our homes with hot water, heat, and air
conditioning.
Solution
The best solution is to use a more responsible “Mix”
of renewable and non-renewable energy
sources.
Moreover, if we can cut waste use of energy by 50%,
all sources will last longer.
Let’s see how we can make a difference. The house is a
place where a lot of energy is used and
most of the time wasted.
Here are some tips:
· Close doors and
windows to keep heat inside the house.
· Make sure to turn
the lights off when you are not in a room
· Remember to
un-plug all the electronic devices
· Don’t leave the
water tabs open if not necessary.
· Use led bulbs
instead of the traditional ones
· Use rechargeable
batteries instead of disposable ones
· Install solar and
photovoltaic panels on the roof of your house
