This document discusses energy, including its definition, types, sources, and environmental impacts. It describes different types of energy like kinetic, potential, electrical, chemical, and nuclear. Energy sources are categorized as renewable (hydraulic, solar, wind, marine, geothermal, biomass) and non-renewable (coal, petroleum, natural gas, nuclear). Non-renewables cause issues like greenhouse gases, acid rain, pollution and waste. The document also briefly discusses energy power stations and a new wind turbine invention that extracts water from air humidity.
2. IN D E X
1.-Energy Definition.
2.-Types energy.
3.-Energy Sources.
4.-Renewable and Non-Renewable energies.
5.-Environmental Impacts
6.-Energy Power Station.
3. Energy Definition
• Energy is the capacity of an object to realize a
function.Energy is equivalent to the capacity
of pulls or pushes against the nature
forces,along a certain length.
4. Types of energy
• Mechanical Energy: There are two types of
mechanical energy: Kinetic and potential.
• Kinetic energy: Is the energy which is in
motion.Some examples of kinetic energy are
moving water and wind.
•
5. Types of energy
• Potential Energy: is
when an object
with energy is
moved from their
stable place of
equilibrium.
For example: a
roller coaster.
6. Types of energy
• Electrical Energy: Is the energy that make
electrically powered machines work when a
supply of electricity is connected to it.This
energy can be a secondary source of energy
too.
7. Types of energy
• Electromagnetic
energy: It is
reflected from
objects as electrical
and magnetic
waves that can
travel through
space.
• An example: the
needle of a
compass.
8. Types of energy
• Sound energy: This energy is associated with
the waves of the sound that transmitted
vibrations.The sound waves produced by
objects require some types os materials to
travel through.
• For example:
the sound of
a guitar.
•
9. Types of Energy
• Chemical energy:Is the type of energy which
is stored in substances.During the chemical
processes this energy can be released or
absorbed.
10. Types of Energy
• Nuclear Energy:This type of energy is stored
in the nuclei of atoms.It can be released
through fission or fussion or radioactive
decay.
•
11. Types of Energy
• Thermal energy:This
energy is obtained
from the vibrations of
particules in some
matter.Also,this
energy is the part of
the total in internal
energy of
thermodynamic
system that result in
the temperature.
12. Energy Sources
• This are natural resources which produce
different types of energy.This energy can be
obtained to produce heat,light and power.
• There is two types of energy sources:
• Non-renewable energy sources:This type of
energy came from limited natural
resources.There is a process called
Regeneration .The main sources of energy
that we use at the moment are:
13. Non-renewable energy sources
• Nuclear energy:Which is stored in the nuclei
of the atoms.There are two kinds:Nuclear
fusion and nuclear fission.In the nuclear
power station use fission energy.
14. Non-renewable energy sources.
• Coal: This type is a useful resource because
it is burned for the production of electricity
or heat and is used for industrial purposes
too.There two ways for extracting
coal:Open-cast mines(when is close to the
surface) and Underground mines(when is
buried deep below the surface).
•
15. Non-renewable energy sources
• Petroleum:It is a natural occuring which is
obtained from the buried remains of
descomposed plants and animals. It can be
transport by oil trankers (specialised ships)
and oil pipelines (enormous steel pipes).
16. Non-renewable energy sources.
• Natural gas:It is a natural ocurring which is
very used as an important energy source in
many applications. This type can be obtain
from deep underground natural rock
formations.
•
17. Non-renewable energies and the
environment.
• The non-renewable energy sources causes
poblems in the envioronment which are difficult
to solve:
• Increased greenhouse effect: When fossil fuels
are burned it release carbon dioxide, so this
increased the carbon dioxide in the atmosphere,
and the temperature increased.
• Acid rain: It is a rain which posses elevated levels
of hydrgoen ions. This is caused by burning
petroleum and coal.
18. Non-renewable energies and the
envioronment.
• Oil spills: It is the release of liquid petroleum
into the sea, sometimes because of oil
tankers accidents.
• Nuclear waste: It emits radioactivity which is
dangerous to all living beings, so it must be
stored in extremely safe conditions.
•
19. Non-renewable energies and the
environment.
• Rising water temperature: Thermal power
stations produce hot water which causes a
temperature in river and sea water to rise.
• Atmospheric pollution: Traffic and other
activities produce heavy metals,gases and
particles in suspension into the atmosphere.
20. Renewable energy sources
• Renewable energy sources are unlimited
natural resources.
• There are five types of renewable energy
sources:
• Hydraulic energy: It is obtain by the
movement of water in currents, seas, rivers,
etc. It is produced by dams to store the river
water and it is used to produce electricity.
21. Renewable energy sources
• Solar energy: This energy is able to take
advantages of light to transform it into
chemical energy. It is produced by
thermonuclear radiation from
the sun. For example, hot water, solar panels
and heliostat fields.
22. Renewable energy sources
• Wind energy: It is able to convert the wind
into a useful form of energy. For example
wind turbines, windmills and windpumps. It
was used to move sailin ships too.
• It energy is produces by the radiation on the
atmosphere.
23. Renewable energy sources
• Marine energy: It is the energy carried by
tides, salinity, ocean temperature differences
and ocean waves. It creates a vast store of
kinetic energy.
• Geothermal energy: this is a thermal energy
produced and stored in the Earth. It also
determines the temperature of matter.
24. Renewable energy sources
• Biomass: It is biological matter from living
organisms tha can be used directily or
transform into another energy products such
as biofuel.
• For example organic waste, sewage.
25. Environmental impacts
• This is causes of human activities which are
negatives aspects on the biophysical
environment. It include pollution,
environmental degradation, resource
depletion and climate changes etc.
The level of understanding of Earth has
increased in recent times by the science with
the application of the scientific method.
26. Energy power stations
• A power station is a facility for the generation
of electric power.
• The centre of all power stations is the
generator, a machine that change mechanical
power into electrical power creating by
motion.
27. Wind Turbines
• French engineering firm has discovered an eco-purpose
for the towering structures.It is called WMS1000 and it is
created by the Eole Water.This is a wind turbine which
transform the humidity of the air in water.First, all the air
is picked and processed directed through an electric
cooling compressor situated behind the propellers,after
this, the humidity is extracted and finally it produces
moisture which is condensed and collected. One of this
wind turbines can produce 1,000 liters of water every day,
depending on the level of humidity.
28. Wind Turbines
• I think this invention will be really good as it could cure
the drought in many areas and could nourish more than a
thousand people.These turbines can be very beneficial
to many people and greatly enrich the population.They
said that the problem is the money because it is very
expensive but I think there are a lot of ways to get money
so I don’t think this is a problem.
