energy resources. the ultimate energy source the sun is the ultimate source of all our energy. for...
TRANSCRIPT
![Page 1: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/1.jpg)
Energy Resources
![Page 2: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/2.jpg)
![Page 3: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/3.jpg)
![Page 4: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/4.jpg)
The ULTIMATE energy source
The sun is the ultimate source of all our energy.
For example, we often get energy from beef:
BEEF comes from COWS,
COWS eat GRASS,
GRASS gets energy from the sun
![Page 5: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/5.jpg)
FuelsA “fuel” is something that can be burned to release heat and light energy. The main examples are:
Coal, oil and gas are called “fossil fuels”. In other words, they were made from fossils.
![Page 6: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/6.jpg)
Renewable energy sourcesWind
Tidal
Hydro-electric
Geothermal
Biomass
Wave
![Page 7: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/7.jpg)
Renewable vs. non-renewable fuels
A ________ energy source is one that can be _______ (“renew = make again”), e.g. _____, solar power etc. Biomass is also an example of a renewable energy source – ______ is a form of biomass.
A ___________ energy source is one that when it has been used it is gone forever. The main examples are ____, oil and gas (which are called ______ ____, as they are made from fossils), and nuclear fuel.
Words – non-renewable, coal, wind, renewable, fossil fuels, wood, renewed
![Page 8: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/8.jpg)
Non-renewable energy sources
Coal, oil, gas and nuclear
Advantages Disadvantages
Cheap fuel costs
Easy to use
Generate a lot of energy
Fuel will run out
Pollution – CO2 leads to global warming and SO2 leads to
acid rain
![Page 9: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/9.jpg)
Renewable energy sources
Wind, tidal, solar, Waves,
Advantages Disadvantages
Clean
Easily accessible
Won’t run out Look ugly
Energy is “dilute” – in
other words, it’s very spread out
Often depend on the weather – is it
sunny???
![Page 10: Energy Resources. The ULTIMATE energy source The sun is the ultimate source of all our energy. For example, we often get energy from beef: BEEF comes](https://reader038.vdocuments.site/reader038/viewer/2022103122/56649d005503460f949d2b37/html5/thumbnails/10.jpg)
FoodFood is an energy resource. The amount of energy it contains is measured in “kilocalories” (KCal). For example, consider 100g of the following:
230 KCal
160 KCal 35 KCal
760 KCal