Difference between revisions of "Tidal"
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==Key Stage 3== | ==Key Stage 3== | ||
===Meaning=== | ===Meaning=== | ||
| − | '''Tidal''' is an [[Energy Resource|energy resource]] which uses | + | '''Tidal''' is an [[Energy Resource|energy resource]] which uses tides to generate electricity. |
===About Tidal=== | ===About Tidal=== | ||
: '''Tidal''' is a [[Renewable Energy Resource|renewable energy resource]]. | : '''Tidal''' is a [[Renewable Energy Resource|renewable energy resource]]. | ||
: '''Tidal''' has [[energy]] in the [[Gravitational Potential Energy Store|gravitational potential energy store]] of water that is being pulled by the [[The Moon|moons]] [[Gravity|gravitational]] pull. | : '''Tidal''' has [[energy]] in the [[Gravitational Potential Energy Store|gravitational potential energy store]] of water that is being pulled by the [[The Moon|moons]] [[Gravity|gravitational]] pull. | ||
| − | : | + | : Tides happen twice a day. Once when the [[The Moon]] is directly overhead and once when the [[The Moon]] is on the opposite side of the [[Earth]]. |
===Power=== | ===Power=== | ||
{| class="wikitable" | {| class="wikitable" | ||
| Line 13: | Line 13: | ||
|} | |} | ||
| − | : 1. As the | + | : 1. As the tide changes water passes through the pipes in the [[tidal]] barrage. |
: 2. The water causes [[turbine]]s to turn. | : 2. The water causes [[turbine]]s to turn. | ||
: 3. The [[turbine]]s spin a generator which makes [[electricity]]. | : 3. The [[turbine]]s spin a generator which makes [[electricity]]. | ||
Revision as of 19:04, 3 April 2019
Key Stage 3
Meaning
Tidal is an energy resource which uses tides to generate electricity.
About Tidal
- Tidal is a renewable energy resource.
- Tidal has energy in the gravitational potential energy store of water that is being pulled by the moons gravitational pull.
- Tides happen twice a day. Once when the The Moon is directly overhead and once when the The Moon is on the opposite side of the Earth.
Power
 |
- 1. As the tide changes water passes through the pipes in the tidal barrage.
- 2. The water causes turbines to turn.
- 3. The turbines spin a generator which makes electricity.
Advantages
- Do not produce pollution.
- Very reliable (high tide occurs twice a day).
- No fuel costs.
- Power output can be varied by opening and closing sluice gates to control the water flow.
Disadvantages
- Cost to build is quite high.
- Prevent access to boats.
- Tidal height varies throughout the year.
- Damages habitats by not allowing the natural flow of the tides.