specific examples, describe please. Thank you in advance
2007-01-03 12:44:22 · 11 answers · asked by theresa_xo92 2 in Science & Mathematics ➔ Physics
Waterfalls! As the water falls from the higher plateau to the lower plateau (due to what else but gravity) it turns turbines that in turn generate electricity =)
2007-01-03 12:47:52 · answer #1 · answered by Torontonian1978 2 · 0⤊ 1⤋
Well, yes, hydroelectric plants use the force of gravity to push the water through the turbines that drive the generators. But this is really an example of solar power, as it was the sun that evaporated the water, raised it into clouds, and allowed it to rain into a river ABOVE the hydroelectric dam so that gravity could pull it down through the turbine. (If you include this fact in your answer, you might get a higher grade on your homework.)
Following up on that thought, the power plants that use tidal forces to generate electricity are also using gravity. As the tide comes in, they dam the water, so that it is higher on the side where the water is coming FROM. Then they use the greater depth (higher pressure) on that side to push water through the turbine that powers the generator. Just like damming a river, damming the tides allows gravitational force on the water to generate electricity.
And then when the tide goes out, the dam can again be used to trap the water that wants to get out. And when it's high enough about the water on the outside so that the pressure can run a generator, it is run through a turbine to operate the generator.
2007-01-03 13:15:28 · answer #2 · answered by actuator 5 · 0⤊ 0⤋
Hydroelectric dams.
Each of the 17 generators at Hoover Dam can supply the total electrical needs of a city with 750,000 people !
2007-01-03 12:52:38 · answer #3 · answered by LeAnne 7 · 1⤊ 0⤋
Hydro-electric dams. The weight of the water gets the turbines moving which in turn generate electricity by the generators attached to the turbines.
2007-01-03 12:49:34 · answer #4 · answered by luosechi 駱士基 6 · 1⤊ 0⤋
You can't.
OK people are talking about hydroelectric but thats just potential energy in letting the water go to a lower level. You can't get energy from gravity directly for reasons that are a little complicated but rooted in relativity and thermodynamics.
2007-01-03 14:22:51 · answer #5 · answered by TRITHEMIUS 3 · 0⤊ 0⤋
Hydro-electric and tidal-electric generating dams use gravity to make electricity.
GRAVITY - it's not just a good idea, it's the law!
2007-01-03 13:10:16 · answer #6 · answered by sudonym x 6 · 1⤊ 0⤋
gravity causes things like waterfalls which can be converted into energy (as the water passes over those windmill things in the water they convert the energy.)
2007-01-03 12:48:24 · answer #7 · answered by Yoni 2 · 0⤊ 0⤋
Hydroelectric power plants
2007-01-03 14:15:26 · answer #8 · answered by ZeedoT 3 · 0⤊ 0⤋
I think you use metal and gravity to perform electrictiry but anyway can u asnwer the question I podsted
2007-01-03 12:48:01 · answer #9 · answered by AshleyJones 1 · 0⤊ 1⤋
gravity causes water to run, and waves to form, also causes some types of heat, geothermal
2007-01-03 12:52:39 · answer #10 · answered by Luigi 3 · 0⤊ 0⤋