You can achieve 100% Energy Saving WHEN YOU TURN OFF THE LIGHTS.
Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You...
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Transcript of Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You...
![Page 1: Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You can see energy as light. –And you can feel it as wind.](https://reader035.fdocuments.net/reader035/viewer/2022062806/5697bfc11a28abf838ca4265/html5/thumbnails/1.jpg)
Energy Resources
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Nature of Energy•Energy is all around you!
–You can hear energy as sound.
–You can see energy as light.
–And you can feel it as wind.
![Page 3: Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You can see energy as light. –And you can feel it as wind.](https://reader035.fdocuments.net/reader035/viewer/2022062806/5697bfc11a28abf838ca4265/html5/thumbnails/3.jpg)
You use energy when you:
-hit a softball.
-lift your book bag.-compress a spring
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Living organisms need energy for
growth and movement.
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Energy is involved when:
– a bird flies.
– a bomb explodes.
– rain falls from the sky.
– electricity flows in a wire.
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What is Energy?
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● Energy can be defined as the ability to do work.
● If an object or organism does work (exerts a force over a distance to move an object) the object or organism uses energy.
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Energy Resources1. Fossil Fuels 5. Hydropower2. Nuclear Power 6. Solar Power3. Biomass 7. Wind Power4. Geothermal Power
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Fossil Fuels
Coal, petroleum, and natural gas are fossil fuels.
They are nonrenewable because they cannot be
replenished in a short period of time.
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Nuclear Energy
Nuclear fission uses uranium to create energy.
Nuclear energy is a nonrenewable resource because
once the uranium is used, it is gone!
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BiomassEnergy from burning organic or
living matter Ex. burning wood, dung, sugar cane or
garbage.
Biomass energy is considered to be a renewable resource because it can be replenished in a short period of time.
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Geothermal Power
Geothermal energy means getting heat from hot rocks within our Earth.
•A renewable resource
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Geothermal Power
Hot water comes up out of the ground, and we use the heat to make steam to drive turbines and heat buildings.
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Hydroelectric Power•Hydropower means getting energy
from flowing water.
•Perpetual
•No pollution, no fuel needed, no waste.
•Building a dam means flooding a lot of land.
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WIND POWERA perpetual energy that ultimately comes
from the sun.
Wind doesn’t cause pollution, and doesn’t need fuel.
It needs a lot of generators to get a sensible amount of power.
Generators need to be placed where winds are reliable.
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Solar Energy
•Solar power is perpetual.
•Solar power doesn’t cause
pollution and doesn’t need fuel.
•Solar cells are expensive.