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P1 Topic 5 edexcel
Fichas del conjunto (18)
- 1Define currentThe rate of the flow of charge.
- 2Define voltageElectrical pressure giving a measure of the energy transferred
- 3List 6 renewable resourcesSolar
Wind
Tidal
Wave
Geothermal
Hydrological or Hydroelectric Power (HEP) - 4Give one advantage of solar energyPotentially infinite energy supply.
Single dwellings can have own electricity supply.
No harmful gases produced. - 5Give one disadvantage of Solar energyManufacture and implementation of solar panels can be costly.
- 6Give one advantage of wind energyCan be found singularly, but usually many together in wind farms.
Potentially infinite energy supply.
No harmful gases produced. - 7Give one disadvantage of wind energyManufacture and implementation of wind farms can be costly.
Some local people object to on-shore wind farms, arguing that it spoils the countryside. - 8Give one advantage of tidal energyIdeal for an island such as the UK.
Potential to generate a lot of energy.
Tidal barrage can double as a bridge, and help prevent flooding.
No harmful gases produced. - 9Give one disadvantage of tidal energyConstruction of barrage is very costly.
Only a few estuaries are suitable..
Opposed by some environmental groups due to its negative impact on wildlife..
May reduce tidal flow and impede flow of sewage out to sea. - 10Give one advantage of wave energyIdeal for an island country.
More likely to be small local operations, rather than done on a national scale.
No harmful gases produced. - 11Give one disadvantage of wave energyConstruction can be costly.
May be opposed by local or environmental groups. - 12Give one advantage of geothermal energyPotentially infinite energy supply.
Used successfully in some countries, such as New Zealand and Iceland.
No harmful gases produced. - 13Give one disadvantage of geothermal energyCan be expensive to set up and only works in areas of volcanic activity.
Geothermal and volcanic activity might calm down, leaving power stations redundant.
Dangerous elements found underground must be disposed of carefully. - 14Give one advantage of Hydroelectric energy (HEP)Creates water reserves as well as energy supplies.
No harmful gases produced. - 15Give one disadvantage of Hydroelectric energy (HEP)Costly to build.
Can cause the flooding of surrounding communities and landscapes.
Dams have major ecological impacts on local hydrology. - 16Give 4 ways you could increase the size of an induced current?Use a coil of wire/increase the number of turns, use an iron core, use a stronger magnet, move the magnet more quickly.
- 17What do transformers do?Change the voltage of a current.
- 18Why is electricity transmitted at high voltages?Improves efficiency by reducing heat loss.
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- How good are you at Physics?
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