Magnets
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Transcript

  • 1. Magnets May the force be with you By: Miss Ziliak
  • 2. Standard 3: The Physical Setting
    • Indicator 4.3.15- A magnet pulls (without touching them) all things made of iron and pushes/pulls other magnets.
    • Taken from: http://dc.doe.in.gov/Standards/AcademicStandards/StandardSearch.aspx
  • 3. Definitions
    • Magnet - a device that attracts iron and produces a magnetic field
    • Poles - one of the two ends of a magnet where the magnetism seems to be concentrated
    • Attract - To pull toward without touching >--<
    • Repel - cause to move back by force or influence  -- 
  • 4. Background Information
    • Magnetic field
    • A magnetic field consists of imaginary lines of flux coming from moving or spinning electrically charged particles. Examples include the spin of a proton and the motion of electrons through a wire in an electric circuit.
  • 5. Materials
    • 2 Bar Magnets
    • Tape
    • Sticky Notes
    • Pencil
    • Science Journal
    • Paperclip
    • (All materials found in box supplied by USI Instructor)
  • 6. Background Information
    • Magnets are one of the rare items found in nature that are able to exert control over other objects without actually touching them. If you hold a magnet close to a certain type of object, it will either attract or repel it. This is due to the principles of magnetism.
  • 7. Procedure
    • 1.Take magnets out of box and hold in front of you. Try to touch the North ends together.
    • 2.Try to touch the South ends together
    • 3.Try to touch the North and South ends together
    • 4. Discuss what you have experienced. Why do you think this happened?
    • 5. Put paperclip on table. Determine if the paperclip would be considered a North or South pole.
  • 8. Resources Magnetism Movie and Quiz www.brainpop.com/science/forces/megnetism/index.weml Article http://www.ehow.com/how-does_4566719_magnets-attract-repel.html
  • 9. Summary
    • Magnets have two ends (or poles).  If you put the poles of two magnets together, they will either pull together or push apart.  Magnets will pull (attract) each other if the poles are different.  This invisible pull is called a magnetic force.  Magnets will push (repel) each other if the poles are the same.  This magnetic forces pulls against you.
  • 10. Questions 1.What do you observe when you place two magnets next to each other North to North? South to South? North to South? 2.Why do magnets push or pull other magnets? 3.How did you determine if the paperclip would be a North or South pole?