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Magnetism and Electricity Test Subjects: Magnetism Poles, magnetic field lines, attraction, repulsion, geographic poles, magnetic poles, magnetic domains, electromagnet, magnetic force and distance, “soft” iron, Static Electricity Induction, conduction, friction, positive and negative charges, strength of electric field, electric field lines, pith balls, Current Electricity Ohms law, direct current, alternating current, parallel circuit, series circuit, schematic diagrams, conducting materials, insulating materials, electrical potential, wet cell battery, dry cell battery, open circuit, closed circuit, ampere, volt, ohm, watt, power, electric motor, electric generator, electromagnetic induction, transformer, step-up transformer, step-down transformer, wind turbine, solar energy, sources of energy used to produce electricity, kilowatt, kilowatt hours, resistance, voltage Formulas: R=V/I Pages in Holt: p. 530 – 552 p. 564 - 582 P=I*V R = V2 / P