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unit 3
Term | Definition |
---|---|
electric charge | a property that leads to electromagnetic interactions between the particles that make up matter. |
static electricity | the buildup of electrical charge on an object. |
electrical conductor | a material through which charges can move freely. |
electrical insulator | a material through which charges cannot move easily. |
semiconductors | a special class of materials that conduct electric charge better than electrical conductors. |
electric current | the rate os flow of electric charges. |
voltage | the amount of work required to move each unit of charge just between two points. |
resistance | the opposition to electric flow of electrical charge represented in ohms. |
electric current | a complete closed path through which electric charge can flow. |
series circuit | all parts are connected in a row that forms one path for the electric charges to flow. |
parallel circuit | electric charges have more than one path that they can flow. |
magnet | any material that attracts iron or objects made from iron. |
magnetic force | when you bring two magnets together they exert a push or pull |
magnetic poles | two magnets can push each other apart because of their ends |
magnetic field | the area surrounding a magnet where magnetic forces can be detected. |
electromagnetism | the interaction of electric currents or fields and magnetic fields |
electromagnetic | of or relating to the interrelation of electric currents or fields and magnetic fields. |