Difference between revisions of "Hydroelectric"
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:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Hydroelectric power, pages 32-3, 41, GCSE Physics; Student Book, Collins, AQA ''] | :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Hydroelectric power, pages 32-3, 41, GCSE Physics; Student Book, Collins, AQA ''] | ||
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Hydroelectric power, pages 38-39, GCSE Physics; Third Edition, Oxford University Press, AQA ''] | :[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Hydroelectric power, pages 38-39, GCSE Physics; Third Edition, Oxford University Press, AQA ''] | ||
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| + | ====Edexcel==== | ||
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| + | :[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Hydro-electricity, page 161, GCSE Combined Science; The Revision Guide, CGP, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''Hydro-electricity, page 29, GCSE Physics; The Revision Guide, CGP, Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Hydroelectricity, page 326, GCSE Combined Science, Pearson Edexcel ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Hydroelectricity, page 44, GCSE Physics, Pearson Edexcel ''] | ||
Revision as of 14:20, 21 November 2019
Contents
Key Stage 3
Meaning
Hydroelectricity is an energy resource that uses the water flowing in rivers to generate electricity.
About Hydroelectricity
- Hydroelectricity is a renewable energy resource.
- Hydroelectricity has energy in the gravitational potential energy store of water that is flowing downhill.
Power
Hydroelectricity can be used to generate electricity.
 |
| A diagram of a hydroelectric dam. |
- 1. Water flowing down a river is held back by a dam making a large reservoir.
- 2. Some water is allowed through pipes to flow downhill.
- 3. This water turns a turbine as it falls.
- 4. The turbine causes a generator to spin.
- 5. The generator makes an electrical current.
Advantages
- Reliable source as it is built in places that do not suffer drought.
- Power provided can change at a moments notice by allowing more water through the turbines.
- Low running costs and no fuel cost.
Disadvantages
- Expensive to build.
- Require the flooding of a large area of land.
- Destroys habitat of some creatures.
- Blocks the migration of some river species.
- Can only be built in certain locations.
Key Stage 4
Meaning
Hydroelectricity is an energy resource that uses the water flowing in rivers to generate electricity.
About Hydroelectricity
- Hydroelectricity is a renewable energy resource.
- Hydroelectricity has energy in the gravitational potential energy store of water that is flowing downhill.
Power
Hydroelectricity can be used to generate electricity.
|
| A diagram of a hydroelectric dam. |
- 1. Water flowing down a river is held back by a dam making a large reservoir.
- 2. Some water is allowed through pipes to flow downhill.
- 3. This water turns a turbine as it falls.
- 4. The turbine causes a generator to spin.
- 5. The generator makes an electrical current.
Advantages
- Reliable source as it is built in places that do not suffer drought.
- Power provided can change at a moments notice by allowing more water through the turbines.
- Low running costs and no fuel cost.
Disadvantages
- Expensive to build.
- Require the flooding of a large area of land.
- Destroys habitat of some creatures.
- Blocks the migration of some river species.
- Can only be built in certain locations.
References
AQA
- Hydroelectic power, page 50, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Hydroelectric power, page 177, GCSE Combined Science; The Revision Guide, CGP, AQA
- Hydroelectric power, page 24, GCSE Physics, Hodder, AQA
- Hydroelectric power, page 279, GCSE Combined Science Trilogy 1, Hodder, AQA
- Hydroelectric power, page 52, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Hydroelectric power, pages 18, 20, GCSE Physics; The Revision Guide, CGP, AQA
- Hydroelectric power, pages 32-3, 41, GCSE Physics; Student Book, Collins, AQA
- Hydroelectric power, pages 38-39, GCSE Physics; Third Edition, Oxford University Press, AQA