The document discusses different types of energy, including thermal energy, sound energy, wind energy, and solar energy. It describes renewable energy sources like wind and solar, as well as non-renewable sources such as oil, coal, and natural gas. Thermal energy is defined as the internal energy of a system in equilibrium that is proportional to temperature. Sound energy is the energy transmitted through sound waves. Wind and solar energy are discussed as renewable sources.

2.  Energy : Thermal energy and sound
energy.
 Types of energy and energy sources.
 Wind energy and Solar energy.
 Non-renewable energy :Oil, Coal and
Natural Gas.
 Renewable energy : Wind energy and
solar energy.
 Energy saving tips.

3. Energy is the
ability to produce
changes , and can
manifest in
different ways:
 Wind energy.
 Solar energy.
 Thermal energy.
 Sound energy.
 Power chemistry.

4. Thermal energy is the
internal energy of a
thermodynamic system in
equilibrium that is
proportional to absolute
temperature and increases or
decreases by transfer of
energy, usually in the form of
heat or work in
thermodynamic processes.
At the microscopic level and
in the framework of the
kinetic theory, is the total of
the average kinetic energy
present as a result of the
random motions of atoms
and molecules or thermal
agitation, which disappear at
absolute zero.

5. Sound energy is the energy that
transmit sound waves or
transported. It comes from the
vibrational energy of sound focus
and spreads to the media
particles traversing as kinetic
energy and potential energy.
When leaving the sound
propagating through the
medium, the energy is
transmitted to the speed of the
wave, but a part of the sound
energy is dissipated as energy
thermal. The acoustic energy
usually have low absolute values,
and its unit as it is the joule.
Although it may be calculated
from other quantities as sound
intensity, it can also be related to
calculate other quantities such as
density or acoustic energy flow.

6.  The energy sources are more or less complex
fixed elaborations which humans can extract
energy to perform a particular job or get
some use. For example : wind, water and
sun.
 Energy can manifest itself in different ways:
in the form of motion (kinetic ) position (
potential) , heat , electricity , electromagnetic
radiation , etc.

7. Non-renewable
energy such as:
 Oil
 Coal
 Natural gas

8. Substance composed of
a mixture of
hydrocarbons, dark
color and strong odor,
black and lighter than
water, which is found
naturally in
underground reservoirs
in the upper layers of
the earth's crust;
Fractional distillation
gives the product of
great industrial
importance as gasoline,
kerosene, tar, solvents,
etc.

9. Solid, light,
black and fuel
resulting from
the distillation
or incomplete
combustion of
wood or other
organic bodies.

10. Natural gas is a
major source of fossil
energy released by
combustion. It is a
mixture of light
gaseous
hydrocarbons
extracted either from
separate sites (free
gas), or with coal or
oil fields (associated
with other
hydrocarbon gases
and gas).

11. It is called renewable energy
to the energy obtained
virtually inexhaustible natural
sources, either by the
immense amount of energy
they contain, or because they
are able to regenerate by
means lifelike. Among
renewable energy as wind,
geothermal, hydroelectric
count , tidal, solar, wave,
biomass and biofuels.
 Wind power.
 Solar energy.

12. Wind power is a
variable of solar
energy, because it is
derived from heating
the atmosphere and
irregularities of relief
of the earth's
surface.

13. Solar energy is a
renewable energy,
obtained from the
use of
electromagnetic
radiation from the
sun.

14. I think we should
not allow ourselves
the lights or turn
them off when
you're not using.
Also we would help
the planet if not
spend so bathing
water when a
shower is spent
almost half, or that
everyone will use
light bulbs that
pollute less ...