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N. Sassaman SAMS - 2011
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VOCABULARY, VOCABULARY, VOCABULARY!! List in notes, atomic particles, units of measurement.
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Examples of conductors, insulators Change resistance in a wire… Charged particles and interaction Series vs. parallel circuits ◦ Switch placement, added bulbs and affect on current, brightness, overall resistance. Ohm’s law (VIR relationships)
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Formulas will be given!! Be sure to SHOW YOUR WORK! ◦ Formula ◦ Values in formula ◦ Final answer with correct units of measurement
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CIRCUITS!! Identify series vs. parallel circuits Know how parts of the circuit affect the whole
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Three (3) to choose from…you do ONE (1)! Circuits – general and series vs. parallel Conductors and insulators
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- Electric Charge and Static Electricity Charges that are the same repel each other. Charges that are different attract each other.
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- Electric Charge and Static Electricity An electric field is a region around a charged object where the object’s electric force is exerted on other charged objects.
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- Electric Current Electric current is the continuous flow of electric charges through a material. http://www.rkm.com.au/animations/animation-electrical-circuit.html http://www.rkm.com.au/animations/animation-electrical-circuit.html
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- Electric Current An electric circuit is a complete, unbroken path through which electric charges can flow.
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- Electric Current Two factors that affect the resistance of water flowing in a pipe are diameter and length. The diameter and length of a wire also affect resistance in a circuit.
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http://www.teachers domain.org/asset/h ew06_int_ohmslaw/ V = I R R = V/I I = V/R
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- Electric Circuits Simple symbols are used to diagram a circuit.
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- Electric Circuits In a series circuit, there is only one path for the current to take. Overall resistance is additive. Dimmer lights “If one light goes out, they all go out!”
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- Electric Circuits In a parallel circuit, there are several paths for the current to take. Each path is independent of the others. Brightness same as if only one bulb.
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- Electrical Safety One way to protect people from electric shock and other electrical danger is to provide an alternate path for electric current.
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