energy – power for today’s world lynne m. bailey csd 9 title iib stem grant [email protected]
TRANSCRIPT
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Agenda
• Paperwork• Introduction
• Protocols• Objectives
• SystemsKinds of Energy
• Creating electricity
• Activities• Renewable• Exploring online
activities and resources
• Post-test• Reflection and
classroom application
• Share-out
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Getting Started
• Paperwork done?• Protocols – leave no tracks!• Objectives• Standards• Quick Quiz
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Energy
• Ability to do work• Many types of energy• Energy is always conserved:
Work Input = Work Output• Energy is transferred by forces to other
kinds of output• Total input = total output, though the
output will never be 100% efficient
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Energy Conversion Examples
Source: Wikipedia Energy Entry
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Units of measurement
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Step Back
• Often we can’t see the forest from the trees
• Everything is a system wrapped within other systems, micro to macro
• Natural, from the life cycle of a micro-organism, to the ecosystem it lives in, to the system of planets, galaxies and the universe itself
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Systems
• Input• Output• Feedback• Online lesson
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History & Technology
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Historical Developments
• Power for the Industrial revolution• Phase I – Mechanization
• Maximizes inventions using mechanical devices powered by kinetic energy – i.e. flowing water and also human and animal power
• Phase 2 – Steam • Early piston-driven engines appeared in 1700’s
(Newcomen) and greatly improved in 1787 (Watt); in 1800’s locomotive & steam boats
• Phase 3 – Electricity
Wikipedia Industrial Revolution
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External Combustion
A Watt steam engine, the steam engine that propelled the Industrial Revolution in Britain and the world.
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Modern Era Takes Off
• Harnessing and controlling electricity• Battery – 1800 (Volta)• Electric generator – 1831 (Faraday)• Niagara Falls power plant 1900
• Transportation • Steam engines• Internal combustion engines lead to
automobiles
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Electrical Power
• Power plants• Electricity created by spinning magnets
inside of copper coils • Same basic idea for over 100 years• How you spin the magnets is the issue
• Steam generated• Water• Wind
• Let’s go to the video
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US Fuel for Electricity
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Project
• Briefly list and describe the various types of fuel used for electrical power generation
• Choose a renewable energy source• How does it work?• What are the benefits and drawbacks of using this
fuel?\• Add resources to the wiki page,
http://technoed.wikispaces.com • Publish/ present your work
• PowerPoint, web page (wiki or Google pages)
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Computing
• Continue system lesson plan• Parts of a computer system
• Input• Processing• Storage• Output• Feedback
• Technology Trends interactive lesson
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Let’s Build It
• Moving water• Archimedes’s screw
• Moving in water• Mini steam boat
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Transportation
• Combustion!• Engine design started with external
combustion• Graduated to internal combustion
• Uses many different mechanisms, including the Cam Shaft
• Not very efficient• Let’s go to the video
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New Industrial Revolution
• “Green” Revolution• Undo damage from the first
revolution• Characterized by industrialization,
expanding global markets & mechanization
• Calls for merging environmental sustainability and economic competitiveness
Source: Wikipedia Entry
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New Industrial Revolution
• “Janine Benyus TED Talk: 12 sustainable design ideas from nature
• Vertical farming• Keeping up with the news
• Dot Earth Blog• Do you RSS?
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Exploring Resources
• Web page at wikipsaces.com• Technoed.wikispaces.com • Check the blog,
http://lynnembailey.edublogs.org for updates or my website www.lynnembailey.com
• What can you use in your classroom?• How can you apply this science thread in
your subject area?
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Reflection and Share -out
• Written reflection of today’s workshopor
• Add a comment to the blog• http://lynnembailey.edublogs.org
• Questions?• Tomorrow’s workshop• Complete evaluation forms