Energy resources Flashcards
Name the 7 renewable energy resources.
Solar, tidal, wind, geothermal, hydroelectric, wave and biomass
Name 2 non-renewable energy resources.
Fossil fuels and nuclear
What are the 3 main fossil fuels?
Coal, oil and natural gas
What is a renewable energy resource?
An energy resource that can be replaced quickly and renews on a human time scale
What is a non-renewable energy resource?
A non-renewable energy resource cannot be replace quickly and will eventually run out. It is a finite resource
What are these energy resources examples of?
Primary energy sources
What are primary energy sources?
Energy in its raw and unchanged state that has not been subjected to any conversion or transfer of energy
What is a secondary source of energy?
A secondary source of energy is energy that has been converted into a more useful form
What is an example of a secondary source of energy?
Electricity
What energy store is energy in fossil fuels stored in?
Chemical energy
What are some uses of fossil fuels?
Transport, heating, electricity generation
What relative power output do they have?
High power output
What are some advantages of fossil fuels?
They can be easily accessed, can generate large amounts of elctricity to a single location, do not rely on factors such as weather therefore reliable
What are some disadvantages of fossil fuels?
They release CO2 when burned, which contributes to global warming, they are a non-renewable resource, meaning it is finite and will eventually run out
What energy store is is stored in nuclear fuels?
Nuclear energy
What are some uses of nuclear fuels?
Electricity generation
What relative power output po nuclear fuel have?
Very high
What are some advantages of nuclear fuels?
They have a very high energy output, reliable source of energy, do not produce CO2 (small carbonfootprint and no greenhouse gas emissions)
What are some disadvantages of nuclear fuels?
Produce radioactive waste, which needs to be disposed of safely, high upfornt costs/ expensive to build, non-renewable energy resource, malfunctions can be catastrophic
What type of energy store is biofuel?
Chemical energy
What are some uses of biofuel
Transport, heating, electricity generation
What relative power output does biofuel have?
Medium
What are some adventages of biofuel?
Emit less greenhouse gases than gasoline or diesel eg., they are a renewable energy resource
What are some disadvatages of biofuels?
Biofuel takes up land that can be used for farming, high production costs
What type of energy store is wind energy?
Kinetic energy
What are some uses of wind energy?
Electricity generation
What is the relative power output of wind energy?
Very low
What are some advantages of wind energy?
Does not emit greenhouse gases, renewable source of energy
What are some disadvantages of wind energy?
Take up large areas of land that can be used for farming, some people say it spoils the view, kills birds/threat to wildlife, not reliable
What type of energy store does hydroelectricity use?
Gravitational potential energy
What are some uses of hydroelectricity?
Electricity generation
What is the relative power output of hydroelectricity?
Medium
What are some advantages of hydroelectricity?
Does not emit greenhouse gases, Renewable source of energy, reliable
What are some disadvantages of hydroelectricity?
Large areas of land need to flooded to build dams, which disrupts habitats, cuses displacement of people, high building costs
What energy store is geothermal?
Thermal energy
What are some uses of geothermal energy?
Electricity generation and heating
What is the relative power output of geothermal energy?
Medium
What are some advantages of geothermal energy?
Reliable source of energy, renewable energy resource, no harmful polluting gases are emited
What are some disadvantages of geothermal energy?
Most part of the world are not suitable, expensive to build
What energy store is tidal energy?
Kinetic energy
What are some uses of tidal energy?
Electricity generation
What is the relative power output of tidal energy?
Potetially very high but hard to harness
What are some advantages of tidal energy?
Renewable source of energy, no harmful emissions, low maintenance and operational costs
What are some disadvantages of tidal energy?
Expensive to build, not all areas are suitable, fish can enter turbines, tidal barrages can block sewage, which needs to go out to sea
What type of energy is solar?
Nuclear energy
What are some uses of solar energy?
Electricity generation and heating
What is the relative power output of solar energy?
Dependant on weather and only available during daylight
What are some advantages of solar energy?
No harmful emissions, low maintenance and can reduce energy bills long run, renewable energy resource
What are some disadvantages of solar energy?
Expensive to build, only available during daylight
What energy store is water waves?
Kinetic energy
What are some uses of water waves?
Electricity generation
What is the relative power output of water wave energy?
Low
What ares some advantages of water wave energy?
Renewable energy resource, no harmful emissions, reliable energy resource
What are some disadvantages of water wave energy?
Tidal barrages destroy habitats for fish and marine life, difficult to make wave machine big enough to produce large amounts of electricity
Why are some energy resources more reliable than others?
Because some are reliant on factors that cannot be controlled by humans such as weather and are inconsistent in producing the needed amount of energy.
