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Physics Physics and and
ChemistryChemistry
EEnergynergyEnergy is a physical quantity Energy is a physical quantity
that describes the amount of that describes the amount of work that can be performed work that can be performed by a force. Energy can be by a force. Energy can be recycled or not recycled.recycled or not recycled.
The Sun is a recycled energyThe Sun is a recycled energyThe coal isn’t recycled energyThe coal isn’t recycled energy
EEnergy sourcesnergy sources Renewable energy is energy generated from Renewable energy is energy generated from
natural resources, some renewable energies are natural resources, some renewable energies are wind power, solar power or wave power.wind power, solar power or wave power.
Non renewable energy. Non-renewable energy Non renewable energy. Non-renewable energy is energy, taken from "finite resources that will is energy, taken from "finite resources that will eventually dwindle, becoming too expensive or eventually dwindle, becoming too expensive or too environmentally damaging to retrieve", as too environmentally damaging to retrieve", as opposed to renewable energy sources, which opposed to renewable energy sources, which "are naturally replenished in a relatively short "are naturally replenished in a relatively short period of time." period of time."
RRenewableenewableSome of renewable energies can be solar, Some of renewable energies can be solar,
wave or wind power.wave or wind power.We can obtain this energy with solar We can obtain this energy with solar
panels or with very big windmills.panels or with very big windmills.All of this energy has been in the nature All of this energy has been in the nature
directly from sun or wind.directly from sun or wind.
WWindind power powerFor collected this energy we used For collected this energy we used
windmills this have got a dynamo when windmills this have got a dynamo when the blades rotate the dynamo produces the blades rotate the dynamo produces energy.energy.
WWave energyave energyWe obtain this energy directly from the We obtain this energy directly from the
sea.sea.When waves move this span a turbine and When waves move this span a turbine and
produce energy with a dynamo.produce energy with a dynamo.
SSolar energyolar energyThis energy has been produced by sun.This energy has been produced by sun.We use solar panels to collect this We use solar panels to collect this
photovoltaic energy.photovoltaic energy.
GeothermalGeothermal powerpower
We use the hot inside on the heart to We use the hot inside on the heart to move turbines and then with a dynamo move turbines and then with a dynamo transform the movement in electric energy.transform the movement in electric energy.
BBiiomassomassBiomass is solar energy converted by the Biomass is solar energy converted by the
vegetation on organic matter, we can vegetation on organic matter, we can recover this energy by direct combustion recover this energy by direct combustion or transforming organic matter into fuels.or transforming organic matter into fuels.
MMunicipal Solid unicipal Solid WasteWaste Municipal Solid Waste (MSW) are those Municipal Solid Waste (MSW) are those
that originate in the household and that originate in the household and commercial cities and towns. In the commercial cities and towns. In the developed countries are increasingly using developed countries are increasingly using more packaging, paper, and where the more packaging, paper, and where the culture of "use and throw" has spread to culture of "use and throw" has spread to all sorts of consumer goods, the quantities all sorts of consumer goods, the quantities of waste being generated has grown up of waste being generated has grown up reach very high figures.reach very high figures.
Non-renewableNon-renewableThis energy takes a lot of time to renew.This energy takes a lot of time to renew.Some of this energy are petrol, coal or Some of this energy are petrol, coal or
radioactive elements.radioactive elements.We use this elements to heat water and We use this elements to heat water and
them this water goes to a turbine and this them this water goes to a turbine and this turbine move a lot and generated energy.turbine move a lot and generated energy.
CCoaloalCoal has produced by burnt wood and Coal has produced by burnt wood and
them this comber in coal below a lot of them this comber in coal below a lot of years the types of coal has hull, lignite, years the types of coal has hull, lignite, anthracite and turban.anthracite and turban.
PetrolPetrol Oil is burned and the heat evaporates the Oil is burned and the heat evaporates the
water and that water passes through water and that water passes through turbines with a generator to produce turbines with a generator to produce energy.energy.
NNuclear energyuclear energyThe atoms of a heavy nuclear materials The atoms of a heavy nuclear materials
are bombarded with neutrons and a shock are bombarded with neutrons and a shock releases a large amount of heat energy releases a large amount of heat energy that evaporates the water and in a nuclear that evaporates the water and in a nuclear plant that water passes through turbines to plant that water passes through turbines to produce electricity with a dynamo.produce electricity with a dynamo.
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