| Term | Definition |
|---|
| magnetism | what is the invisible force that causes a magnet to attract things to itself? |
| iron nickel cobalt | what three materials are attracted to magnets |
| lodestones | what are naturally occurring magnets that are composed of magnetite? |
| iron ore | what is magnetite made of? |
| opposite | ______ poles attract |
| repel | like poles ______ |
| north and south poles | what are the 2 sides of a magnet called? |
| directly, strengths | the force between 2 magnets is _______ related to the pole _________ |
| inversely, distance | the force acting between 2 magnetic poles is __________ related to the square of the ________ between them |
| gravity, magnetism | ________ always effects objects the same way, but __________doesnt |
| magnetic field | what surrounds every magnet and effects the objects within that region? |
| lines of force | what are the imaginary lines that represent a magnets magnetic field called? |
| core | what is the center of an atom called? |
| domain | what is a group of aligned atoms with a single magnetic field and creates the north and south? |
| ferromagnetic | what is a magnetic material called? |
| soft magnets | What are temporary magnets that are easy to algin? |
| hard magnets | what are peramanent magnets that are hard to align called? |
| contact | _______ is magnetization by stroking or touching the object with another magnet |
| induction | __________ is magnetization by bringing the object within the magnetic field of a magnet |
| keep them together | to preserve magnets, you should ______ _____ ____________ and keep them away from hotness |
| superconducting magnets | what are electromagnets made of special materials that allow electricity to flow through them without resistance? |
| north | a compass always points ______ (if you dont get this one right i am allowed to make fun of you) |
| magnetic field, hammer | to make a soft magnet a peramanent magnet you put it in a __________ _____ and hit it with a _______ |
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