ENERGYENERGYEduardo C.DEduardo C.D

Noa L.CNoa L.CDiego M.VDiego M.VElena G.HElena G.H

STUDENT 1ºSTUDENT 1ºTypes of forms of energy:Types of forms of energy:• Kinetic energyKinetic energy• Gravitational potential energyGravitational potential energy• Thermal or caloric energyThermal or caloric energy• Chemical energyChemical energy• Electric energyElectric energy• Light energyLight energy• Sound energySound energy

ENERGY ENERGY SOURCESSOURCES• Fossil fuelFossil fuel• Primary and secondary energy sourcesPrimary and secondary energy sources• Renewable - non renewable energy Renewable - non renewable energy

sourcessources• The origins of the energy sourcesThe origins of the energy sources

KINETIC ENERGYKINETIC ENERGY•   It is defined as the It is defined as the workwork needed to  needed to

accelerate a body of a given mass from accelerate a body of a given mass from rest to its stated rest to its stated velocityvelocity . .

GRAVITATIONAL POTENTIAL GRAVITATIONAL POTENTIAL ENERGYENERGY

• This is the energy of an object due to its This is the energy of an object due to its height above the ground .height above the ground .

THERMAL OR CALORIC THERMAL OR CALORIC ENERGYENERGY• This energy is due to temperatureThis energy is due to temperature• Thermal radiation in visible light can be Thermal radiation in visible light can be

seen on this hot metalwork.seen on this hot metalwork. Caloric energyCaloric energythe quantity of heat produced by the the quantity of heat produced by the

complete combustion of a given mass of a complete combustion of a given mass of a fuel, usually expressed in joules per fuel, usually expressed in joules per kilogram   kilogram  

CHEMICAL CHEMICAL ENERGYENERGY• Is the transformation through a chemical Is the transformation through a chemical

reaction or throught other transformation reaction or throught other transformation into chemical substances into chemical substances

ELECTRIC ELECTRIC ENERGYENERGY•   Is energy derivation from Is energy derivation from electricalelectrical

potentialpotential energyenergy . Is simply flow of . Is simply flow of electrons. The movement of these electrons. The movement of these electrons has the capacity to make electrons has the capacity to make lightbulbs and electrical appliances lightbulbs and electrical appliances work. work.

LIGHT ENERGYLIGHT ENERGY•   Is the Is the energyenergy of  of electromagneticelectromagnetic radiationradiation

. The light heat up the temperatures of the . The light heat up the temperatures of the objects that are exposed to it rays, this objects that are exposed to it rays, this energy of the sun is use to make electric energy of the sun is use to make electric current.current.

SOUND SOUND ENERGYENERGY• Sound energySound energy  is a  is a formform ofof energyenergy

 associated with the  associated with the vibrationvibration or  or disturbance of matter. Sound is a vibration disturbance of matter. Sound is a vibration in the environment that transports energyin the environment that transports energy..

FOSSIL FUELFOSSIL FUEL• Fossil fuelsFossil fuels  are  are fuelsfuels formed by natural  formed by natural

processes such as processes such as anaerobicanaerobic decompositiondecomposition of buried dead organisms. of buried dead organisms.

• (petroleum derivatives, coal, and gas) (petroleum derivatives, coal, and gas) have things in common: they come from have things in common: they come from organic material (animal and vegetable).organic material (animal and vegetable).

PRIMARY AND SECONDARY PRIMARY AND SECONDARY ENERGY SOURCESENERGY SOURCES• PRIMARY ENERGY SOURCESPRIMARY ENERGY SOURCESThey are found in nature: Sun, wind, coal, They are found in nature: Sun, wind, coal,

petroleum, gas, waves, heat of earth, petroleum, gas, waves, heat of earth, tides, firewood, uranium .tides, firewood, uranium .

SECONDARY ENERGY SECONDARY ENERGY SOURCESSOURCES• They are not found in nature; they are They are not found in nature; they are

produced by means of a technological produced by means of a technological process: gasoline, electricity, hydrogen. process: gasoline, electricity, hydrogen.

RENEWABLE AND NON-RENEWABLE AND NON-RENEWABLE ENERGY RENEWABLE ENERGY SOURCESSOURCES

RENEWABLE ENERGY SOURCESRENEWABLE ENERGY SOURCES• energy that comes energy that comes

from resources which come from from resources which come from nature and they don´t run out. The rate nature and they don´t run out. The rate of consumption is lower than the rate of of consumption is lower than the rate of production: Sun, wind, waves, tides, production: Sun, wind, waves, tides, biomass, water, earth heat. biomass, water, earth heat.

ADVANTEGES RENEWABLE ADVANTEGES RENEWABLE ENERGY SOURCESENERGY SOURCES• It will never run out.It will never run out.• It require less maintenance than traditional It require less maintenance than traditional

generators. generators. • It derived from natural and available It derived from natural and available

resources that reduces the costs of resources that reduces the costs of operation. operation.

DISADVANTEGESDISADVANTEGES

•   it is difficult to generate the quantities it is difficult to generate the quantities of of electricityelectricity  that are as large as those  that are as large as those produced by traditional fossil fuel produced by traditional fossil fuel generators. generators.

NON-RENEWABLE ENERGY NON-RENEWABLE ENERGY SOURCESSOURCES

• They are fuels made up of pollutants They are fuels made up of pollutants resources. The rate of consumption is resources. The rate of consumption is higher than the rate of production: higher than the rate of production: uranium, coal, gas, and petroleum .uranium, coal, gas, and petroleum .

ADVANTAGES AND ADVANTAGES AND DISAVANTEGESDISAVANTEGES•   Our supplies will be safe for future Our supplies will be safe for future

generations.  generations.  • One disadvantage is that non-renewable One disadvantage is that non-renewable

energy is causing damage to our energy is causing damage to our environment. environment.

ORIGINS OF ENERGY ORIGINS OF ENERGY SOURCESSOURCES• Firewood: is any wooden material that is Firewood: is any wooden material that is

gathered and used for gathered and used for fuelfuel. . • Petroleum:It consists of hydrocarbons of various Petroleum:It consists of hydrocarbons of various

molecular weights and other molecular weights and other organic organic compoundscompounds. .

• Coal:is an organic Coal:is an organic natural resourcenatural resource..• Gas is one of Gas is one of the four fundamental states of the four fundamental states of

matter.matter.• Sun: solar energy comes from the sun.Sun: solar energy comes from the sun.

RESOURCESRESOURCES• greenliving.lovetoknow.com/Advantages_and_Digreenliving.lovetoknow.com/Advantages_and_Di

sadvantages_of_Non_Renewable_Energysadvantages_of_Non_Renewable_Energy• https://www.google.es/#q=advantages+of+renehttps://www.google.es/#q=advantages+of+rene

wable+energy+sourceswable+energy+sources• https://www.google.es/search?https://www.google.es/search?

q=DISrenewable+energy+sources&biw=1366&biq=DISrenewable+energy+sources&biw=1366&bih=667&source=lnms&sa=X&ei=AK_nVOapC8X0h=667&source=lnms&sa=X&ei=AK_nVOapC8X0Uu-Uu-KgrAI&ved=0CAUQ_AUoAA&dpr=1#q=renewablKgrAI&ved=0CAUQ_AUoAA&dpr=1#q=renewable+energy+sourcese+energy+sources

PART 2PART 2

• ●●Non-renewable energy sources:   higher rate of Non-renewable energy sources:   higher rate of consumptionconsumption

• lower rate of productionlower rate of production

• ●●Fossil fuels: -energy sources that come from organic Fossil fuels: -energy sources that come from organic materialmaterial

•     animal and animal and vegetablevegetable

• has undergone a has undergone a process called fossilizationprocess called fossilization

• release release energy when burnedenergy when burned

• ●●Nuclear energy:Nuclear energy:• -Are thermal →  heat is produced by a nuclear -Are thermal →  heat is produced by a nuclear

reactionreaction• -Nuclear technology → bombs-Nuclear technology → bombs• -Nuclear reactions → nuclear fission:split the -Nuclear reactions → nuclear fission:split the

atoms of radioactive materials.atoms of radioactive materials.• Chain reaction →atoms split up → release more Chain reaction →atoms split up → release more

neutrons → split up other uranium atoms.neutrons → split up other uranium atoms.• -Nuclear energy → transforms into electric energy-Nuclear energy → transforms into electric energy

• https://www.youtube.com/watch?https://www.youtube.com/watch?v=cnjGYHOePu0v=cnjGYHOePu0

• ●●Transformation of thermal energy into mechanical:Transformation of thermal energy into mechanical:

• Example:a motor carExample:a motor car• -gasoline burns → explosion -gasoline burns → explosion

• THERMAL energy produces the piston´s THERMAL energy produces the piston´s

movement and  the                     movement and  the                     •                                                                                             wheels start wheels start

workingworking• •                                  

  MECHANICAL energyMECHANICAL energy

●●MachinesMachines• -Steam engine         -Steam engine        

                                                                                                                                      -                                                                                                                                      -Red arrow → enters steam heatedRed arrow → enters steam heated

• -Blue arrow → steam goes out-Blue arrow → steam goes out•

• -Internal combustion engine -Internal combustion engine

• Combustion → with an oxidant → combustion chamberCombustion → with an oxidant → combustion chamber

• -Steam turbine-Steam turbine• Extracts thermal energy from pressurized steam → mechanical workExtracts thermal energy from pressurized steam → mechanical work

• -Gas engine (reactor)-Gas engine (reactor)• -Internal combustion engine → runs on a -Internal combustion engine → runs on a

gas fuel such as coal gasgas fuel such as coal gas•

RENEWABLE

RENEWABLE

ENERGY.

ENERGY.

STUDENT 3.

D

IEGO

STUDENT 3.

D

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MARTÍ VADILLO.

MARTÍ VADILLO.

WHAT ARE RENEWABLES WHAT ARE RENEWABLES ENEGIES?ENEGIES?

• We call renewables energies to the types We call renewables energies to the types of energy which can not waste and as of energy which can not waste and as most of them are made by nature, the do most of them are made by nature, the do not pollute the environment.not pollute the environment.

• the mos important the solar energy.the mos important the solar energy.

• types or renewable the wind enery.types or renewable the wind enery.

• enery are the water enery.enery are the water enery.

• But we are going to see some more.But we are going to see some more.

SOLAR ENERGY.SOLAR ENERGY.• This type of energy transfor the sun This type of energy transfor the sun

rays into energy. There are two types.rays into energy. There are two types.

• Termic solar enery: this is used for Termic solar enery: this is used for own ussage, it has a sensor own ussage, it has a sensor which captures the solar energy and which captures the solar energy and transform it to electricity for our transform it to electricity for our electrical devides o heaters…electrical devides o heaters…

•

• Photovoltatic technology: it uses Photovoltatic technology: it uses the photovoltatic energy to accumulate the photovoltatic energy to accumulate the energy in a collector, we can also the energy in a collector, we can also foun collectors which store the energy foun collectors which store the energy and protect the batteries of a and protect the batteries of a sobrecharge of energy. This way to sobrecharge of energy. This way to collect enery is much more eficient collect enery is much more eficient and it is uses for many houses.and it is uses for many houses.

AEOLIC ENERGY.AEOLIC ENERGY.• This type of energy transform the This type of energy transform the

power of the wind into energy.power of the wind into energy.

• For this to function For this to function

• is necessary the air is necessary the air

• current to have a current to have a

• cenrtain force, the cenrtain force, the

• turbins of the turbins of the

• machine generatemachine generate

• electricity thatn we electricity thatn we

• use in our daily life.use in our daily life.

WATER ENERGY.WATER ENERGY.•This types of energy This types of energy uses the power of uses the power of the ocean to pass the ocean to pass from one end to the from one end to the another and causing another and causing a strong movement a strong movement of the turbin which of the turbin which collect the energy collect the energy and send to the and send to the central power stationcentral power station

•WAVES WAVES ENERGY.ENERGY.• The water The water

• under the sea under the sea moves a turbin moves a turbin turbin turbin which m which m makes an makes an aa aa electric current electric current current. current.

BOIMASS ENERGY.BOIMASS ENERGY.• The biomass energy consist of The biomass energy consist of

burning the natural materials in order burning the natural materials in order to produce biofuels which can be use to produce biofuels which can be use like a tipe of energylike a tipe of energy

GEOTHERMAL ENERGY.GEOTHERMAL ENERGY.

• It uses the heat of volcanos, geyser and It uses the heat of volcanos, geyser and the underground of the earth to take part the underground of the earth to take part of the heat and use it for oru houses.of the heat and use it for oru houses.