Transcript Energy Unit Review Powerpoint

Energy Unit
Review
What three word phrase
do we use to refer to
conservation of resources?
Reduce, reuse, recycle
Ethanol is classified
as what kind of
energy resource?
Biomass
What do we call energy
resources which can be
replaced over time?
Renewable resources
Is coal a renewable or
a non-renewable
energy resource?
Non-renewable
Making machines more
efficient would be an
example what aspect of
energy resources?
Conservation, Stewardship,
reduction
The fact that their use is
sustainable over time is a
characteristic of what kind
of energy resource
category?
Renewable energy
resources
When one action causes
several other actions,
what do we call that?
A chain reaction
What do many saw
and paper mills do to
improve their energy
efficiency?
Send sawdust and wood
scraps to be burned for
electricity
Name 3 ways of generating
electricity that involve
using steam to turn a
turbine which then spins a
generator?
Coal, Natural Gas, Geothermal,
Nuclear, Biomass
An atom with a
different number of
neutrons than normal
is called what?
isotope
In electric power plants that
use steam to generate
electricity, what device
makes the generators spin?
turbines
Name a disadvantage of
using flowing water to
generate electricity.
Loss of land and ecosystems
when reservoirs are made
The process by which radiation
from the Earth’s atmosphere
warm’s the planet’s surface is
known as what?
The Greenhouse Effect
What kind of energy
resource, in general, would
be the most sustainable kind
of energy resource?
Renewable
When we look at an energy
device in terms of amount of
energy output divided by the
cost of the device, we are
measuring what?
Efficiency
What is an advantage of
using non-renewable energy
resources?
Cheaper, well established
infrastructure, currently
abundant resources
Why do we use Uranium to
fuel Nuclear Reactors?
The nucleus of the Uranium atom is
unstable and will undergo nuclear
fission (creating heat)
A crop which has been
genetically engineered to
produce much higher yield per
acre is an example of what kind
of technology?
Biotechnology
What pushes electrons in
photovoltaic cells which
starts the flow of
electricity?
Photons, light
Name a common, everyday
part of the national Oil
Infrastructure.
Gas Station
Over time, the trend for energy
consumption by humans
continues to go up. How does
that compare to the possible
production of fossil fuels to meet
those energy consumption needs?
Sooner or later, non renewable
resources will run out
What kind of energy is
most often produced using
the movement of water?
electricity
How does the distance between
where the energy source is
obtained and where the energy
source is utilized affect the
efficiency of the process?
The farther apart, the more
energy is lost
Natural gas is considered
what kind of energy source?
Non-renewable, fossil
fuel
How is mechanical energy
changed into electrical
energy?
By the spinning of a
generator
How does a simple generator
work?
By moving a magnet around a
wire coil, an electric current is
produced
Nuclear energy is used
mostly for what?
electricity
Having good insulation in
your home is what part of
the energy usage picture?
Conservation, reduce
Name a source of energy
that is non-renewable and
NOT a fossil fuel.
Nuclear energy
Geothermal home heating
systems use the heat from
the ground to help improve
the ____________ of the
system
efficiency
Name two renewable forms of
energy resources.
Wind, Solar, Hydroelectric,
Geothermal, Biomass
What is wind energy used
for the most?
Electricity
How does the burning of fossil
fuels impact the carbon
footprint?
Fossil fuel use increases the
carbon footprint and contributes
to climate change
What gas is harvested
from landfills that can be
used to generate
electricity?
methane
What do we use petroleum
energy for the most?
Vehicles for
transportation
How is electricity produced
from water?
By turning a turbine which
spins a generator
Name two sources of
energy which we obtain
from mining.
Coal, petroleum, oil,
natural gas, nuclear
What biomass energy
source is produced through
fermentation of plant
sugars?
Ethanol
What source of energy
contributes most to the
development of acid rain?
Burning coal to make electricity
What element has the
largest nucleus of any
naturally occurring
element?
uranium
What contaminant of
coal is primarily
responsible for the
development of acid
rain?
sulfur
Coal fired electric plants in
the Midwestern part of the
US contribute heavily to
what pollution problem in
western North Carolina?
Acid precipitation
How do we use water to
generate electricity?
By turning a turbine which
turns a generator
Coal is used to
make what kind of
energy?
electricity
Name one of the major
challenges associated with
Nuclear Power generation.
Working with radioactivity,
radioactive waste, reactor
meltdown and clean-up
What machine involves
moving a magnet around a
coil of wire to produce
energy?
generator
Where on the Earth’s
surface would you most
likely find Geothermal
power plants?
Tectonic plate boundaries
and volcanic hot spots
What specific material is
responsible for the most
biomass energy
production each year?
wood
What is the primary
focus of the operation
of a nuclear reactor?
Keeping the nuclear fission
chain reactions under control
How long might it take
to finish the clean-up at
the Fukushima nuclear
power plant?
Over 40 years