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AQA Environmental Science ENVS3 - Energy 2024 Exam Questions and Answers
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AQA Environmental Science ENVS3 - Energy 2024 Exam Questions and Answers
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AQA Environmental Science ENVS3 -Energy
2024 Exam Questions and Answers
Aesthetics - Answer>> The issue of how things look, their
appearance.
Barrage - Answer>> A dam built across an estuary to generate
tidal power.
Coppiced woodland - Answer>> Woodland where trees are cut
to the ground every 8-15 years - the regrowing branches were
used in construction and as fuel in the past. They can still be used
as fuel while managing an environment.
Deplete - Answer>> To reduce the amount of a resource that is
available.
Electrolysis - Answer>> The splitting of molecules using
electricity. (lysis=splitting) Usually used in the context of water to
produce hydrogen as a fuel store.
Energy subsidy - Answer>> Any artificial energy input into an
activity.
Energy density - Answer>> The amount of energy in a
particular mass of fuel or that can be harnessed by a particular
mass of equipment.
Finite - Answer>> A word to describe a resource where the
amount is fixed.
, Fissile fuel - Answer>> A type of fuel where the nuclei of the
atoms can be split by neutron bombardment, releasing large
amounts of energy.
Fuel cell - Answer>> An electrochemical device that produces
electricity from a chemical reaction between two contained
substances. These can be hydrogen or alcohol, with oxygen.
Half-life - Answer>> The time it takes for half of the original
material to be lost, a phrase usually used in terms of
radioisotopes.
Heliostat - Answer>> A device that tracks the sun so the angle
of incident sunlight stays the same. Usually found in solar panels.
A natural version is found in sunflowers.
Intermittent - Answer>> A process or resource that is not
constantly available. This does NOT make it unreliable.
Isotope - Answer>> A version of an element with the same
amount of protons but a different number of neutrons in the
nucleus and therefore mass.
Kinetic (energy) - Answer>> The energy of movement.
Non-renewable resource - Answer>> A resource that is
renewed so slowly that the amount available for use is effectively
finite.
Parabolic reflector - Answer>> A mirror system that reflects
incoming light into a single point. Can be combined with solar
panels to produce larger quantities of electricity.
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