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Biomass
Burning biomass produces CO2, so why are these power
stations sometimes described as carbon neutral? (Think
about what plants use to photosynthesis.)
Name 3 examples of biomass fuels? (Usually things that are grown or
certain waste products).
1._____________ 2. _____________ 3. _____________
World Energy Use
Which countries use most energy ? Explain some of these reasons why.
Make a list of activities that contribute to your carbon footprint.
Which countries energy use is increasing most rapidly and why?
Make a list of ways to reduce personal carbon footprints.
Why can we say that people in the UK are responsible for some of
China’s carbon emissions? (Where is your phone made?)
Why do renewable power stations that do not burn fossil
fuels still have a carbon footprint? (Think about how they
are built and what they’re made of.)
Fossil fuels
Name three fossil fuels:
1___________ 2___________
3__________
Give two reasons why many experts believe we should
reduce fossil fuel use.
Efficiency
Power supplied to a lightbulb is 60W. 23W
of useful light energy is produced each
second what is it’s % efficiency?:
Why is a combined heat and power station burning fossil fuel more efficient than
an ordinary fossil fuel power station? (What can we use from it.)
GENERATING ELECTRICITY
Label the parts of a power station:
______________________________________________
Power
In an electrical circuit write the formula
used to calculate
Power using Current and Voltage.
Power =
What is the formula for power in terms of energy
and time?
RENEWABLE ENERGY
1.
______________________
2.
______________________
3.
______________________
4.
____ - __ _____________
Come up with 3 renewable sources of energy which are
alternatives to fossil fuels or nuclear power...
What is the UK
mains voltage ?
______V
Energy Source
Advantage
What is the current through a 60W lightbulb plugged into a UK
mains socket? Power = Voltage x Current
How does a generator work? Use the diagram to explain.
What are the advantages and disadvantages of nuclear power?
Disadvantage
Power =
What are kilowatt hours (kWh)
measuring?______________
An electric drill is rated 500W.
It produces 200W as kinetic
energy, 200W as heat and 100W as
sound. Draw a labelled Sankey
diagram to represent this.