2. STUDENT 1ºSTUDENT 1º
Types 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
3. ENERGYENERGY
SOURCESSOURCES• Fossil fuelFossil fuel
• Primary and secondary energy sourcesPrimary and secondary energy sources
• Renewable - non renewable energyRenewable - non renewable energy
sourcessources
• The origins of the energy sourcesThe origins of the energy sources
4. 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 fromaccelerate a body of a given mass from
rest to its stated rest to its stated velocityvelocity ..
6. THERMAL OR CALORICTHERMAL OR CALORIC
ENERGYENERGY
• This energy is due to temperatureThis energy is due to temperature
• Thermal radiation in visible light can beThermal radiation in visible light can be
seen on this hot metalwork.seen on this hot metalwork.
Caloric energyCaloric energy
the quantity of heat produced by thethe quantity of heat produced by the
complete combustion of a given mass of acomplete combustion of a given mass of a
fuel, usually expressed in joules perfuel, usually expressed in joules per
kilogram kilogram
7. CHEMICALCHEMICAL
ENERGYENERGY
• Is the transformation through a chemicalIs the transformation through a chemical
reaction or throught other transformationreaction or throught other transformation
into chemical substancesinto chemical substances
8. ELECTRICELECTRIC
ENERGYENERGY
• Is energy derivation from Is energy derivation from electricalelectrical
potentialpotential energyenergy . Is simply flow of. Is simply flow of
electrons. The movement of theseelectrons. The movement of these
electrons has the capacity to makeelectrons has the capacity to make
lightbulbs and electrical applianceslightbulbs and electrical appliances
work.work.
9. 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, thisobjects that are exposed to it rays, this
energy of the sun is use to make electricenergy of the sun is use to make electric
current.current.
10. SOUNDSOUND
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 vibrationdisturbance of matter. Sound is a vibration
in the environment that transports energyin the environment that transports energy..
11. 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 fromhave things in common: they come from
organic material (animal and vegetable).organic material (animal and vegetable).
12. PRIMARY AND SECONDARYPRIMARY AND SECONDARY
ENERGY SOURCESENERGY SOURCES
• PRIMARY ENERGY SOURCESPRIMARY ENERGY SOURCES
They 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 .
13. SECONDARY ENERGYSECONDARY ENERGY
SOURCESSOURCES
• They are not found in nature; they areThey are not found in nature; they are
produced by means of a technologicalproduced by means of a technological
process: gasoline, electricity, hydrogen.process: gasoline, electricity, hydrogen.
14. RENEWABLE AND NON-RENEWABLE AND NON-
RENEWABLE ENERGYRENEWABLE ENERGY
SOURCESSOURCES
RENEWABLE ENERGY SOURCESRENEWABLE ENERGY SOURCES
• energy that comesenergy that comes
from resources which come fromfrom resources which come from
nature and they don´t run out. The ratenature and they don´t run out. The rate
of consumption is lower than the rate ofof 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.
15. ADVANTEGES RENEWABLEADVANTEGES RENEWABLE
ENERGY SOURCESENERGY SOURCES
• It will never run out.It will never run out.
• It require less maintenance than traditionalIt require less maintenance than traditional
generators.generators.
• It derived from natural and availableIt derived from natural and available
resources that reduces the costs ofresources that reduces the costs of
operation.operation.
16. DISADVANTEGESDISADVANTEGES
• it is difficult to generate the quantitiesit 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 fuelproduced by traditional fossil fuel
generators.generators.
17. NON-RENEWABLE ENERGYNON-RENEWABLE ENERGY
SOURCESSOURCES
• They are fuels made up of pollutantsThey are fuels made up of pollutants
resources. The rate of consumption isresources. 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 .
18. ADVANTAGES ANDADVANTAGES AND
DISAVANTEGESDISAVANTEGES
• Our supplies will be safe for futureOur supplies will be safe for future
generations. generations.
• One disadvantage is that non-renewableOne disadvantage is that non-renewable
energy is causing damage to ourenergy is causing damage to our
environment.environment.
19. ORIGINS OF ENERGYORIGINS OF ENERGY
SOURCESSOURCES
• Firewood: is any wooden material that isFirewood: is any wooden material that is
gathered and used for gathered and used for fuelfuel..
• Petroleum:It consists of hydrocarbons of variousPetroleum:It consists of hydrocarbons of various
molecular weights and other molecular weights and other organicorganic
compoundscompounds..
• Coal:is an organic Coal:is an organic natural resourcenatural resource..
• Gas is one of Gas is one of the four fundamental states ofthe four fundamental states of
matter.matter.
• Sun: solar energy comes from the sun.Sun: solar energy comes from the sun.
21. PART 2PART 2
• ●●Non-renewable energy sources: higher rate ofNon-renewable energy sources: higher rate of
consumptionconsumption
• lower rate of productionlower rate of production
• ●●Fossil fuels: -energy sources that come from organicFossil fuels: -energy sources that come from organic
materialmaterial
• animal andanimal and
vegetablevegetable
• has undergone ahas undergone a
process called fossilizationprocess called fossilization
• releaserelease
energy when burnedenergy when burned
22. • ●●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 moreChain 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
23. • ●●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´sTHERMAL energy produces the piston´s
movement and the movement and the
• wheels startwheels start
workingworking
•
•
MECHANICAL energyMECHANICAL energy
24. ●●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
25. • -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
•
27. WHAT ARE RENEWABLESWHAT ARE RENEWABLES
ENEGIES?ENEGIES?
• We call renewables energies to the typesWe call renewables energies to the types
of energy which can not waste and asof energy which can not waste and as
most of them are made by nature, the domost 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.
28. SOLAR ENERGY.SOLAR ENERGY.
• This type of energy transfor the sunThis 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 forTermic solar enery: this is used for
own ussage, it has a sensorown ussage, it has a sensor
which captures the solar energy andwhich captures the solar energy and
transform it to electricity for ourtransform it to electricity for our
electrical devides o heaters…electrical devides o heaters…
29. AEOLIC ENERGY.AEOLIC ENERGY.
• This type of energy transform theThis type of energy transform the
power of the wind into energy.power of the wind into energy.
• For this to functionFor this to function
• is necessary the airis necessary the air
• current to have acurrent to have a
• cenrtain force, thecenrtain force, the
• turbins of theturbins of the
• machine generatemachine generate
• electricity thatn weelectricity thatn we
• use in our daily life.use in our daily life.
30. WATER ENERGY.WATER ENERGY.
•This types of energyThis types of energy
uses the power ofuses the power of
the ocean to passthe ocean to pass
from one end to thefrom one end to the
another and causinganother and causing
a strong movementa strong movement
of the turbin whichof the turbin which
collect the energycollect the energy
and send to theand send to the
central power stationcentral power station
•WAVESWAVES
ENERGY.ENERGY.•
The waterThe water
•
under the seaunder the sea
moves a turbinmoves a turbin
turbinturbin
which mwhich m
makes anmakes an
31. BOIMASS ENERGY.BOIMASS ENERGY.
• The biomass energy consist ofThe biomass energy consist of
burning the natural materials in orderburning the natural materials in order
to produce biofuels which can be useto produce biofuels which can be use
like a tipe of energylike a tipe of energy
32. GEOTHERMAL ENERGY.GEOTHERMAL ENERGY.
• It uses the heat of volcanos, geyser andIt uses the heat of volcanos, geyser and
the underground of the earth to take partthe 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.
