Energy Demands Flashcards
What are systems that store? Large amounts of energy called?
Energy resources
What are the major energy resources to produce electricity?
Fossil fuels nuclear fuel biofuel wind hydroelectricity neural tidal water waves sun
What is fossil fuel?
Natural fuel formed by remains of living organisms
What is nuclear fuel ?
Radioactive materials
What is hydroelectricity?
Electricity generated by water movement
What is geothermal?
Energy from heat of the Earth
What are renewable energy sources?
Energy sources that are replenished
Where is energy needed in homes?
Heating, cooking plus running appliances
Where is energy needed in homes?
Heating plus running appliances
Where is energy needed in public services?
Running machinery and warming rooms
Why is energy needed for factory and farms?
To operate heavy duty machinery plus production chains
Give an example of how producing and distributing electricity can damage the environment
Pollution for harmful waste products
What human actions can renewable resources be replenished by?
Trees that are cut down for biofuel are replaced by planting new trees
Given a natural process that renewable resources are replenished by
Water let through a dam for hydroelectricity is replaced by the water cycle
What is a disadvantage of a renewable energy resource?
They are expensive
What is a positive of power stations that use fossil fuels?
They are reliable
What Energy store is fossil fuels?
Chemical
What are fossil fuels used for?
Transport heating electricity generation
What power output does fossil fuels have? Why is this bad ?
A high power output, it releases Co2
What energy store is nuclear fuels ?
Nuclear
Is nuclear fuels nonrenewable or renewable?
Non renewable
What are nuclear fuels used for?
Electricity generation
What type of output power is nuclear fuels? Why is this bad?
Very high output power, but it produces radioactive waste
What energy store is biofuel?
Chemical
Is biofuel renewable or nonrenewable?
Renewable
What is biofuel used for?
Transport heating electricity generation
What Power output does biofuel have and why is this a problem?
Medium power output but low impact
Power does biofuel have and why is this a problem?
Medium power output but low impact
What energy store is wind energy ?
Kinetic energy
What is wind energy used for?
Electricity generation
What power output is wind and why is this annoying?
Very low power output and takes up large areas
What energy store is hydroelectricity
Gravitational potential energy
Is hydroelectricity renewable nonrenewable?
Renewable
What is hydroelectricity used for?
Electricity generation
What is the power output for hydro electricity? How does it cause environmental impact?
Medium power output and local habitats affected by large areas that are needed to be flooded to build dams
What is the geothermal energy store?
Internal
What is geothermal energy used for?
Electricity generation and heating
What is the power output for geothermal energy and how much environmental impact does it cause
Medium power output and very low environment impact
What energy store is tide energy in?
Kinetic
What is Tide energy used for?
Electricity generation
What is the power output for tides and how does it cause environmental impact?
The power output is potentially very high, but it’s hard to harness and tidal barrages can block sewage which needs to go out to sea
What energy store does the Sun go into?
Nuclear
What is sun energy used for?
Electricity generation and heating
What is the power output dependent on for the Sun energy and what environmental impact does it cause?
The weather and very little impact
What energy store does water wave energy fit into?
Kinetic
What is waterway energy energy used for?
Electricity generation
What is the power output for water wave energy and what is the environmental impact cause?
Low output power and very low environmental impact caused
What is the power output for water wave energy and what is the environmental impact cause?
Low output power and very low environmental impact caused
