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Electricity & Magnetism . by Mr. Reece. Answer the following “fill in the blank”. An unbroken path through which negative charges can flow is a ____________. . c ircuit. Answer the following… . A _________ reduces the amount of electricity that flow through a material. . r esistor.
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Electricity & Magnetism by Mr. Reece
Answer the following “fill in the blank” • An unbroken path through which negative charges can flow is a ____________. circuit
Answer the following… • A _________ reduces the amount of electricity that flow through a material. resistor
Answer the following… • A material that does not allow electricity to flow through it is______________. an insulator
Answer the following… • A material that allows electricity to flow through it easily is _______________. a conductor
Answer the following… • A magnetic field is caused when __________ flows through a circuit. a current
Answer the following… • Objects that have the same number of positive and negative charges are ____________. neutral
Answer the following… • An object with nine – charges and three + charges is _____________________. negatively charged
True & False • ________ Every circuit has an unbroken path and a power source. True
True & False • ________ A parallel circuit has more than one path. True
True & False • ________ The continuous flow of negative charges through a material is called current electricity. True
True & False • ________ Static electricity is more useful than current electricity. False
True & False • ________ Magnetism and electricity are related. True
True & False • ________ Magnets have a north pole and south pole. True
True & False • ________ Objects that have the same kind of charge attract each other. False
True & False • ________ Electric power plants use water, steam, and wind to make generators work. True
True & False • ________ A magnet's magnetism is strongest at the magnet’s poles. True
Terms to Know magnet • ____________ - an object that attracts iron. • ____________ - the ends of a magnet. • __________________ - the area around a magnet where the force of a magnet can act. • ____________ - the pushing or pulling force caused by a magnet. poles magnetic field magnetism
Terms to Know • ____________ - produces electricity by using a coil of wire and a magnet. • __________________ - a temporary magnet formed when electric current flows through a wire coiled around a metal core. generator electromagnet
Complete • Name on way magnets can be used to produce electricity. • By moving a magnet through a coil of wire • By moving a coil of wire through a magnetic field • Name one thing that uses an electromagnet. • Fire alarms, telephones, CD players, computers, doorbells, cranes, maglev trains