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Renewable Energy Resources: Part 1 | GCSE Physics | Doodle Science

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Follow me!: https://twitter.com/DoodleSci Doodle Science teaches you high school physics in a less boring way in almost no time! Script: Renewable energy resources are being developed because we are running out of fossil fuels at an exponential rate. The wind is produced as a result of giant convection currents in the Earth's atmosphere, which are driven by heat energy from the sun. Wind turbines use the wind to drive turbines directly. The blades are connected to a housing, which contains gears linked to a generator. As the wind blows, it transfers some of its kinetic energy to the blades, which turn and drive the generator. The advantages are that there are no fuel costs and no harmful pollutant gases are produced. However, they depend on wind, if there is no wind, there's no electricity. Like the wind, water can be used to drive turbines directly. Wave machines use the kinetic energy in this movement to drive electricity generators. Another way of using the water is to build a tidal barrage over a river estuary to make use of the kinetic energy in the moving water. The barrage contains electricity generators, which are driven by the water rushing through tubes in the barrage. Hydroelectric power stations are dams built across a river valley. The water high up behind the dam contains gravitational potential energy. This is transferred to kinetic energy as the water rushes down through tubes inside the dam. The moving water drives electrical generators, which may be built inside the dam. Water produced energy is good because no harmful polluting gases are produced and tidal barrages and hydroelectric power stations are very reliable and can be easily switched on. However, tidal barrages destroy the habitat of estuary species and hydroelectricity dams flood farmland and push people from their homes.
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Text Comments (46)
Hi my name is (1 day ago)
thanks
Philip Nunn (1 month ago)
Liked the video in science class because I felt bad because of the 14 people who disliked
Władca Wymiaru (6 months ago)
So called "renewable source of energy" are using nuclear energy...Earths or Suns...
Shannon Gibson (6 months ago)
very accurate plans for something like that I found on Avasva
George Ullman (8 months ago)
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Noctis Wolf (8 months ago)
You are helping me so much man
Kadin Hernandez (1 year ago)
Expect lower expenses with your home’s energy consumption in the future with generating power method “boma fetching unique” (Google it). Its an excellent place to begin saving cash by making some small adjustments in your home. You can be a person who wants to save the environment or a family man wanting to save on bills, this is certainly among the best methods you`ll have.
Karlie Bryant (1 year ago)
fuk yu y r u making me do this
Marcus Ortiz (1 year ago)
it is a good video
Ronald H. Pantoja (1 year ago)
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Midnight_Moon25 (1 year ago)
Hi Ben
Donald Burns (1 year ago)
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Touba (1 year ago)
Fucking sick of all these adverts all I want to do is fucking learn physics I swear I've watched more adverts than actual videos
hi
Noah Barrionuevo (1 year ago)
Good job I enjoy your voice and drawings
the best video of all youtube like for this men
Carter Lobre (1 year ago)
DEEZ NUTZ
Carter Lobre (1 year ago)
GOOD JOB MAN
Rhea Tarusan (2 years ago)
love your video.. very informative a good educational material for energy topic..
L JR (2 years ago)
You talk way to fast.
DeathCreationist (1 year ago)
u must lern englsh more then
Ian Prado (2 years ago)
Thorium reactors can power cities on cloudy, windless days.
2 creation stories (3 years ago)
Wind and Solar are not economically viable that is why they are subsidized with tax payer funds unless there's a major jump in technology. Geothermal and hydro are the most promising. and natural gas is a renewable in the form of methane. The carbon pollution from natural gas is very easily converted to a organic form by plants. Carbon pollution from that year will be neutralized by ocean plankton up to 20x estimated by some botanist and marine biologist more carbon then world produces today.
Carter Lobre (1 year ago)
NOOB
DoodleScience (3 years ago)
+2 creation stories Thanks for adding some new insight into it that the video didn't cover! :)
Manpaviter Singh (3 years ago)
Like it doodleeeeeee
reduceelectricusage (4 years ago)
Geothermal, wind, sun, wave, biomass.. are just some example of clean energy source...
Great stuff! Nice work. The public really needs to see more of this. Have you heard anything about a new system called Optimal Future Energy Deployment (it should be on Google)? I’ve heard some interesting things about it and my brother got some amazing results. I’ve also been searching for solutions to the problem of wind turbines killing birds and bats. Ultrasonic acoustics looks like a possible answer to saving bats, but I haven’t read anything lately about the best way to keep birds away from wind turbines. Have you heard anything?
Emonga Minipete (5 years ago)
Solar, Wind, Tidal, Wave, and Geothermal energy.
Sir Tenebris (5 years ago)
love this, it's like a very simple version of minute physics. i find minute physics to complicated. but yours is so much easier
nmartin60 (5 years ago)
Good videos but endings could be better
Felthry (5 years ago)
That's the beauty of thorium reactors; thorium's decay chain quickly becomes stable!
masterredwood (5 years ago)
Well... the problem with nuclear is that we cant just dump the waist into our air like most fuels.
Ian Pogue (5 years ago)
bio-fuels?
puneet sohi (5 years ago)
Very nice!
Felthry (5 years ago)
Nuclear fission is probably the way to go; it's cheaper anyway.
masterredwood (5 years ago)
solar may be expensive, but factor in, once gas gets so low, the price will be high enough that the once over priced solar panel starts to look Pretty good.
Felthry (5 years ago)
Problem with fusion is that the scientific consensus is that cold fusion is impossible and hot fusion involves pretty much making a star. Like, literally making a star. I think cleaner fission reactors (thorium!) is the way to go. Solar is currently expensive but research is being done (by many people including me!) into cheaper ways to make cells.
Felthry (5 years ago)
No mention of solar cells?
S Nance (5 years ago)
And we were saying Fusion was 50 years away.... 50 years ago When it happens, it'll be great. Just need it to happen sometime before we run out of oil and coal.....
Iuliu Pop (5 years ago)
could you talk about thorium?
DoodleScience (5 years ago)
Yeah, I think the way forward is solar and fusion.
Flobbled (5 years ago)
the biggest problem we have with renewable energy plants is the amount of space they take up. e.g. a wide area around a wind tubine has to be completely empty because a. the danger of the wings or ice that forms in cold periods falling off and b. a wind turbine isnt as efficient went there are obstacles in the winds way and c. if wind turbines stand too close to one-another they create turbulences which can destabilise its structure. a few reasons why it is so hard to set them up correctly.
DoodleScience (5 years ago)
thanks, will do;)
lesorax123 (5 years ago)
K.
spiroslouis1 (5 years ago)
nice mate! Keep up the good work
DoodleScience (5 years ago)

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