Chapter 17
Test Review
Energy Efficiency and
Renewable Energy
What
is the least efficient
method of space heating?
Electric
(either through
nuclear or oil production
Best is passive solar
What
would encourage the
Solar-Hydrogen Revolution?
High oil prices, lack of
Government subsidies,
research funds
supply
What
percent of people in
developing countries heat
their house with wood or
charcoal?
70
percent
Which
way in the US should
windows face to gather solar
energy?
South
toward the Sun
What
effect does keeping
energy prices low have on the
US?
Increases
waste, reduces need
to investigate alternative energy
sources
What
are the effects of burning
biomass?
Increased CO2
Increased air pollution (soot,
smoke)
Increased NO, leads to acid rain
What
Two
is cogeneration?
forms of energy are
created from the same fuel
source, usually electricity and
heat
What
would the development
of renewable energy
resources do to the US?
Eventually
eliminate the need
of oil imports
What
is the fastest growing
energy resource?
Wind
power, but it is losing
its appeal, solar should be
rising soon
What
are the cells that
convert sunlight into
electricity called?
Photovoltaic
(solar) cells
What
does requiring high
fuel efficiency in cars do?
Reduces CO2 emissions
Reduces air pollution
Conserves energy resources
Describe
It
a wind farm
is where farmers plant and
grow wind from cloud seed
Or the large scale production of
electricity with wind turbines
What
is produced when you
burn hydrogen gas?
Water
and energy – no real
pollution
How
can industry reduce its
energy consumption?
Recycling
and reusing more
materials
Using cogeneration
Redesigning factories to be more
energy efficient
What
is magma?
Did
you picture Mike Meyers as Dr.
Evil with his little finger at the
corner of his mouth saying “mag-ma”…
or was it just me?
Hot,
liquid rock that can be used for
energy
Describe
the different types of
hydroelectric power
Large scale- big dams, large turbines
Small scale – little dams
Pumped storage – costs more, but can
be used when needed
How
can we increase the energy
efficiency of buildings?
Insulation, double paned
windows, cogeneration, changing
lighting, using passive solar
heating, buying “energy star”
equipment
How
can we improve energy
efficiency for the entire country?
Deport all the republicans
Jokes people, come on, Jokes
Car maintenance, better fuel
efficiency, car pooling, mass
transportation
Describe
wind power’s pros and
cons
Not always available, kills birds,
ugly, back up needed, noisy
No pollution, low long term cost,
high energy efficiency
What
are four examples of
renewable energy?
Wind
Water
Geothermal
Biomass
Which
energy resource improves
the quality of the environment
the most? (Not what you think)
Increased
energy efficiency
Describe
Direct
biomass fuels
burning of plants and
trees
Gaseous biofuels- SNG, wood gas
Liquid biofuels- Ethanol,
Methanol,Gasohol
What
would be a good type of
tree to grow for a biomass
plantation?
Fast
growing trees like poplar,
sycamore, cottonwood
What
does the government do to
manipulate which energy source is
used?
Price control
Subsidies
Regulations
Tax breaks
What
is the primary
component of solar cells?
Transparent wafer containing
semiconductor material
usually made from silicon
Name
some disadvantages to
hydroelectric power
High construction cost
Flooding upstream,
decreased flow downstream
Decreased silt downstream
What
is a micropower system?
Many smaller power generating
systems are used and connected
via an electricity grid
Use alternative energy sources
appropriate to the energy
Which
major country in the
world has not made a formal
commitment to rely primarily on
renewable sources for energy?
Go
US!
The
most expensive way to heat
your house is by using what?
Electric heater
The
best is by passive solar
combined with superinsulation
What
type of water heater is
the most efficient?
A
tankless instant water
heater powered by natural gas
Which
countries probably will
not adopt solar cell technology
in the future and why?
Northern
Countries due to
the lack of available sunshine
What
are the pros and cons of using
geothermal energy?
High efficiency, low CO2 emissions,
low land use, moderate environmental
disturbance
Few available sites, moderate air
pollution, noise and odor
What
is the best (most efficient)
way to heat a house?
A
small nuclear power plant in the
corner of the main living room
Or passive solar if you do not like to
glow at night
Which
fossil fuel has the
lowest environmental impact?
Natural
gas
Give
three examples of passive solar
design for homes
Direct gain – south facing window
Sunspace attached – room to capture
heat attached to house
Earth Sheltered – keeps house cool
in high temperature climates
According
to Amory Lovins, what
is the fast, cheap, easy way to
gain more energy without
environmental damage?
Energy conservation or
eliminating energy waste
Name
some of the disadvantages of
using biomass as an energy source
Uses
needed land
Hard to harvest sustainably
Desertification is typical
Often burnt inefficiently releasing a
large amount of pollutants
That’s all folks
You
should now know all these
concepts
Good
luck and good hunting