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WYLIE Science UB_3
4th grade WYLIE Science Unit B_ch 3
Term | Definition |
---|---|
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 into heat energy |
insulator | a material through which electric current does not pass easily |
series circuit | a circuit 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 metals 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 magneto make electricity |
electromagnet | a magnet made when an electric current flows through a wire |