Stack #182467
Help!
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| What metal is in magnets? | iron
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| What is a push or a pull? | force
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| When two magnets push apart they ______. | repel
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| When two magnets pull together they _______. | attract
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| What 4 materials are needed to make an electromagnet? | steel rod, wire, D-cell, switch
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| Wire is wrapped around an _____ ______. | iron core
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| A ______ ______ is wrapped around the core. | wire coil
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| To make an electromagnet stronger, _______. | Wind more coils
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| Advantage of an electromagnet | turn it on and off
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| Disadvantage of an electromagnet | needs power
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| Used to open and close circuits | switch
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| Electricity flows through this substance | conductor
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| A material that electricity will not flow through | insulator
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| A circular path that electricity flows through | circuit
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| Circuit that electricity will not flow through | open circuit
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| Circuit that electricity will flow through and lights are on | closed circuit
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Created by:
larsonjo