Paper 2 - Energy Resources and Energy Transfers Flashcards

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1
Q

Describe the energy transfer involved in generating electricity using wind

A
  • As the wind blows it turns a turbine
  • The generator converts the turbine’s kinetic energy into electrical energy.
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2
Q

Describe the energy transfer involved in generating electricity using water

A
  • As the water flows, its kinetic energy is used to turn a turbine.
  • The generator converts the turbine’s kinetic energy into electrical energy.
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3
Q

Describe the energy transfer involved in generating electricity using geothermal resources

A
  • Fluids from underground reservoirs come to the surface to produce steam.
  • Steam moves the turbine
  • The generator converts the turbine’s kinetic energy into electrical energy.
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4
Q

Describe the energy transfer involved in generating electricity using solar heating systems

A
  • A heat-transfer fluid is heated to produce steam.
  • Steam moves the turbine
  • The generator converts the turbine’s kinetic energy into electrical energy.
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5
Q

Describe the energy transfer involved in generating electricity using solar cells

A
  • Sun shines onto a solar panel and energy from sunlight is absorbed by the cells in the panel.
  • Creates electrical charges
  • Causes electricity to flow
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6
Q

Describe the energy transfer involved in generating electricity using fossil fuels

A
  • Fossil fuels are combusted to produce steam
  • Steam moves the turbine
  • The generator converts the turbine’s kinetic energy into electrical energy.
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7
Q

Describe the energy transfer involved in generating electricity using nuclear power

A
  • Nuclear fission generates heat to produce steam
  • Steam moves the turbine
  • The generator converts the turbine’s kinetic energy into electrical energy.
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8
Q

What are the advantages of using fossil fuels as an energy source?

A
  • Cheap to obtain fuel
  • Provides a lot of energy
  • If there is a quick change in demand, fossil fuels can respond to that change quickly
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9
Q

What are the advantages of hydroelectric power?

A
  • They do not produce greenhouse gases or harmful gases
  • Cheap to run because it is natural
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10
Q

What are the disadvantages of hydroelectric power?

A
  • The dam may cause flooding
  • Costly to set up
  • Can’t be used everywhere
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11
Q

What are the advantages of solar panels?

A
  • No environmental damage
  • Renewable source of energy
  • Can be used in remote areas where other types of energy are less accessible
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12
Q

What are the advantages of nuclear energy?

A
  • Cheapest energy production per kWh
  • Does not produce Green House Gases
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13
Q

What are the disadvantages of nuclear energy?

A
  • Nuclear waste is radioactive and has a long half life
  • Waste can disrupt wildlife
  • Risk of nuclear accidents
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