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Published byJourney Dover Modified over 3 years ago

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Circuits, motors, and your lab. After friction…now what? http://www.youtube.com/watch?v=bTg 9QBJnR8k http://www.youtube.com/watch?v=bTg 9QBJnR8k

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Simple Circuits Connecting multiple lights SeriesParallel

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Does this work for batteries? http://www.youtube.com/watch?v=UT-pNXtffJg&feature=relmfu YES!!!

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Properties of Magnets Polarity Both North & Both North & South ends on EVERY magnet South ends on EVERY magnet Opposites attract Like poles repel

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What causes magnetism? Spinning or moving charges create a magnetic field (and we don’t know why) Electrons have a charge (negative) So if we move electrons, we get a magnetic field!

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The Magnetic Field of a Current- Carrying Wire Magnetism is created when we move a charged particle. Run a current through a wire and you get a large magnetic field.

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Other Methods to increase Magnetism Since a wire with a current has a magnetic field, if we loop the wire we get a stronger magnetic “force” in the center of the loop. More loops or more current, more magnetic strength.

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Putting these together: Motors Motors Using the concept of a current creates a magnet and reversing the current creates an opposite pole magnet Using the concept of a current creates a magnet and reversing the current creates an opposite pole magnet http://www.youtube.com/watch?v=MFGqf6 AfDB0&feature=related http://www.youtube.com/watch?v=MFGqf6 AfDB0&feature=related

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Putting these together: Motors Your task Play with the setups to answer the: Lab # II Questions!

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What is Magnetism??? Hmmm….

What is Magnetism??? Hmmm….

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