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TYPES OF ENERGY STORE - examples explained
(f) Nuclear energy stores
Doc Brown's
school physics revision notes: GCSE physics, IGCSE physics, O level
physics, ~US grades 8, 9 and 10 school science courses or equivalent for ~14-16 year old
students of physics
This page will help you answer questions
such as ...
What is nuclear energy?
What is a nuclear energy store?
Give an example of a nuclear energy
store
 Nuclear energy
and nuclear energy stores
-
This is energy associated with the
structure of atomic nuclei.
-
Atomic nuclei are nuclear energy
stores and the energy is released in nuclear reactions.
-
Einstein's famous equation relates energy
to mass: E = mc2.
-
When nuclear changes happen there are
changes in the mass of the products and tiny amounts of mass are converted
into energy - heat or electromagnetic radiation..
-
Any mass loss (m), however small,
releases huge amounts of energy (E) as the nuclear energy store
decreases.
-
Nuclear energy released when
the nucleus of an atom undergoes a nuclear reaction e.g.
-
Alpha, beta and gamma radioactive decay
radiations release energy - but not in a form useful in power
generation.
-
 Nuclear fission reactions when
larger atoms like uranium are split by neutrons to form
smaller atoms - this process is used in nuclear power stations.
-
Nuclear fusion is when smaller atoms come together to form a larger atom,
but this also releases huge amounts of nuclear energy e.g. hydrogen ==>
helium in a star like our Sun.
-
All these processes release huge amounts of nuclear energy
and the energy from fission can be
harnessed to power steam turbine generators to drive generators producing
electricity.
-
It is hoped one day that nuclear fusion will provide the
energy, but not practical at the moment!
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Energy resources,
energy
transfers, work done and
electrical power supply revision notes index
Types of energy & stores - examples compared/explained, calculations of
mechanical work done and power
Chemical
energy stores *
Elastic
potential energy stores, calculations *
Electrical
& electrostatic
energy stores
Gravitational potential
energy and calculations *
Kinetic
energy stores
and calculations *
Nuclear
energy store
Thermal
energy stores *
Light energy *
Sound energy *
Magnetic
energy stores
Conservation of energy,
energy transfers-conversions, efficiency - calculations and
Sankey diagrams gcse physics
See also
More on methods of reducing heat transfer eg in a house, insulating properties of materials
Energy resources: uses, general survey & trends,
comparing renewables, non-renewables, generating electricity
Renewable energy (1) Wind power and
solar power, advantages and disadvantages gcse physics revision
notes
Renewable energy (2) Hydroelectric power and
geothermal power,
advantages and disadvantages
gcse physics
Renewable energy (3) Wave power and tidal barrage power,
advantages and disadvantages
gcse physics
See also
Renewable energy - biomass - biofuels & alternative fuels,
hydrogen, biogas, biodiesel gcse chemistry notes
Greenhouse
effect, global warming, climate change,
carbon footprint from fossil fuel burning gcse chemistry
The absorption and emission of radiation by
materials - temperature & surface factors including global warming
The Usefulness of Electricity gcse
physics electricity revision notes
and
The 'National Grid' power supply, mention of small
scale supplies, transformers gcse
physics notes
 GCSE
physics revision notes on nuclear energy stores IGCSE revision
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stores GCSE physics guide
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physics science notes on nuclear energy stores OCR GCSE
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revision notes on nuclear energy stores WJEC gcse science
CCEA/CEA gcse science GCSE physics revision notes on nuclear
energy stores
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a nuclear fission reaction involving a uranium atom
a nuclear fusion of hydrogen atoms into helium atoms.
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