| A | B |
|---|
| resistance | a measure of how much a material opposes the flow of electric current and changes electric current into heat energy |
| conductor | a material through which electric current passes easily |
| insulator | a material through which electric current does not pass easily |
| series circuit | a curcuit that connects several objects one after another so that the current flows in a single path |
| parallel circuit | a circuit that connects several objects in a way that the current for each object has its own path |
| magnet | anything that pulls iron, steel and certain other materials to it |
| magnetism | the force around a magnet |
| magnetic field | the space around a magnet where magnetism acts |
| pole | a place on a magnet where magnetism is strongest |
| compass | a small magnet that can turn freely |
| generator | a machine that uses an energy source and a magnet to make electricity |
| electromagnet | a magnet made when an electric current flows through a wire |
| An object gets an electric charge when it gains or loses________ charges. | negative |
| An electric current will not flow unless it has a ________ pathway, or circuit, to flow through. | closed |
| Series circuits and parellel circuits are two types of _________ circuits. | electric |
| You need to use electricity safely because it can be _________. | dangerous |
| Magnets have a magnetic field that is _______ at its poles. | strongest |
| A compass works because of the ________ magnetism. | earth's |
| A magnet moving inside a _______ of wire makes electricity. | coil |
| An electric current flowing through a wire causes the wire to become ___________. | magnetic |
| Electromagnets are useful in the _______ because they can be turned on and off. | home |
