Chapter Review 14-17 A lot of information to cover Chapter 14 Chapter 15 Chapter 16 Chapter 17.
Chapter 17
description
Transcript of Chapter 17
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Chapter 17
Test Review
Energy Efficiency andRenewable Energy
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What is the least efficient method of space heating?
Electric (either through nuclear or oil production
Best is passive solar
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What would encourage the Solar-Hydrogen Revolution?
High oil prices, lack of supplyGovernment subsidies,
research funds
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What percent of people in developing countries heat their house with wood or charcoal?
70 percent
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Which way in the US should windows face to gather solar energy?
South toward the Sun
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What effect does keeping energy prices low have on the US?
Increases waste, reduces need to investigate alternative energy sources
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What are the effects of burning biomass?
Increased CO2 Increased air pollution (soot,
smoke) Increased NO, leads to acid rain
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What is cogeneration?Two forms of energy are
created from the same fuel source, usually electricity and heat
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What would the development of renewable energy resources do to the US?
Eventually eliminate the need of oil imports
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What is the fastest growing energy resource?
Wind power, but it is losing its appeal, solar should be rising soon
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What are the cells that convert sunlight into electricity called?
Photovoltaic (solar) cells
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What does requiring high fuel efficiency in cars do?
Reduces CO2 emissionsReduces air pollutionConserves energy resources
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Describe a wind farm
It is where farmers plant and grow wind from cloud seed
Or the large scale production of electricity with wind turbines
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What is produced when you burn hydrogen gas?
Water and energy – no real pollution
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How can industry reduce its energy consumption?
Recycling and reusing more materials
Using cogeneration Redesigning factories to be
more energy efficient
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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
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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
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How can we increase the energy efficiency of buildings?
Insulation, double paned windows, cogeneration, changing lighting, using passive solar heating, buying “energy star” equipment
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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
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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
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What are four examples of renewable energy?
WindWaterGeothermalBiomass
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Which energy resource improves the quality of the environment the most? (Not what you think)
Increased energy efficiency
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Describe biomass fuels Direct burning of plants and trees Gaseous biofuels- SNG, wood gas Liquid biofuels- Ethanol,
Methanol,Gasohol
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What would be a good type of tree to grow for a biomass plantation?
Fast growing trees like poplar, sycamore, cottonwood
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What does the government do to manipulate which energy source is used?
Price control Subsidies Regulations Tax breaks
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What is the primary component of solar cells?
Transparent wafer containing semiconductor material usually made from silicon
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Name some disadvantages to hydroelectric power
High construction costFlooding upstream,
decreased flow downstreamDecreased silt downstream
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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
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Which major country in the world has not made a formal commitment to rely primarily on renewable sources for energy?
Go US!
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The most expensive way to heat your house is by using what?
Electric heater
The best is by passive solar combined with superinsulation
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What type of water heater is the most efficient?
A tankless instant water heater powered by natural gas
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Which countries probably will not adopt solar cell technology in the future and why?
Northern Countries due to the lack of available sunshine
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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
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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
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Which fossil fuel has the lowest environmental impact?
Natural gas
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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
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According to Amory Lovins, what is the fast, cheap, easy way to gain more energy without environmental damage?
Energy conservation or eliminating energy waste
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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
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That’s all folks You should now know all these
concepts
Good luck and good hunting