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8thScElec&Mag-3-1&2

8th Grade Science Electricity & Magnetism Chapter 3 Sec. 1 & 2

QuestionAnswer
electromagnetism relationship between electricity & magnetism
energy ability to move an object over a distance
electrical energy energy associated with electric current
galvanometer device that measures small currents
electromagnetic induction generating an electric current from the motion of a conductor through a magnetic field
direct current current of charges that flow in one direction
alternating current current of charges that move back & forth in a circuit
electric generator device that transforms mechanical energy into electrical energy
step up transformer or step down transformer a transformer that increases voltage or a transformer that decreases voltage
solenoid a coil of wire with a current
electromagnet a solenoid with a ferromagnetic core
Created by: Karen Copanic on 2010-04-01



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