Forms of Energy
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Transcript of Forms of Energy
Energy
Where do you use energy?With your partner, right down as many activities as you can that consume energy.
All groups will need to give an answer.
Where do you use energy?The truth is, we use energy for just about everything we do.
If we aren’t directly using energy (turning on a light, charging our phones, watching TV), then energy is being used indirectly.
Industry
Energy is used during every step of the industrial process: obtaining resources, manufacturing goods, and transporting goods.
Where Does Energy Come From?
Where Does Energy Come From?
Fossil Fuels refer to the material that is is formed from decomposed prehistoric organic matter, such as dinosaur bones
Where Does Energy Come From?
The most common forms of fossil fuels is petrol (oil/gasoline) and natural gas
Where Does Energy Come From?
Fossil Fuels● Coal
o Declining in use● Natural Gas
o Used primarily for heating in homes
● Gasolineo Most common form of fossil
fuel
Fossil FuelsWhy are fossil fuels great?
● Fossil fuels are cheap (relatively) and easy to use. All you really have to do is burn the fuel and it creates energy.
● Remember, the basic idea is that heat is energy
Fossil FuelsWhy are fossil fuels not great?
● Non-renewable (finite): they will run outo Some estimates say some forms of fossil fuels will
run out in our lifetime● Cause of conflict
o Small supply = fightingo Wars in the Middle East
Fossil FuelsAnd of course, global climate change
http://www.theatlantic.com/video/archive/2013/08/whos-to-blame-for-climate-change/278548/
Nuclear Energy● Nuclear energy is
much cleaner and longer lasting than fossil fuels
● But it is very expensive and very dangerous if not used properly
● Creates lots of waste
Chernobyl
Fukushima
Renewable● Renewable energy is energy that does not
run out (infinite) or can be replenished
Hydroelectric● Hydroelectric
energy is one of the most efficient renewable sources of energy today
● Dams around the world create a non-stop supply of electricity
Hydroelectric
The downside to hydroelectric energy is that it is very expensive and difficult to build and has a large impact on the environment (not necessarily negative)
Wind and Solar
Geothermal
Renewable● Positives
o These sources of energy are much more environmentally friendly that non-renewables
o They will last much longer● Downsides
o They are much more expensiveo They usually take up a lot of spaceo Do not work everywhere in the worldo No way to store this electricity
Energy Distribution
