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Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
Mag Elec
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Mag Elec

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Published in: Business, Technology
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Transcript

  • 1. Pa Ly Magnets & Electricity
  • 2. Your Thoughts
    • What are magnets?
    • How do we use magnets?
    • How do magnets work?
  • 3. Magnets
    • Magnets come in different shapes and sizes.
    • Horseshoe shaped magnets.
  • 4. Magnets continues…
    • Circular Magnet.
  • 5. Magnets continues…
    • Bar shaped magnet
    • Notice: N orth and S outh poles of the bar magnet.
  • 6. Magnetic Field Lines
    • Magnetic field lines travel from the magnet’s north pole to it’s south pole.
    • The poles cause electrons to spin the in the same direction.
    • Field lines cannot be seen with your eyes.
  • 7. Moving Magnet
    • Faraday discovered that when a magnet is moved inside a coil of wire, electrical current flows in the wire.
    • Copper is a good metal to use for a wire because it has electrons that are loosely held.
  • 8. Magic Magnets
    • Watch magnets in action!
  • 9. Inclass Assignment
    • Group activity. 4 students/group.
    • Develop 5 questions about the magnet.
    • Ex. Where are the poles located on a circular magnet?
    • Ex. How many paper clips linked in a chain can a bar magnet hold?
    • Work together for the next 20 minutes to answer the 5 questions, followed by group presentations.
  • 10. Conclusion/Summary
    • Questions?
    • Textbook
    • Homework

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