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unit 3 lesson 1-5
electricty and magnetism
Term | Definition |
---|---|
electric charge | a property that leads to electromagnetic interactions between the particles that make up matter. |
static electricity | the buildup of electric 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 material that conduct electric charge better than electrical conductors |
electric current | the rate of flow of electric charges |
voltage | the amount of work required to move each unit of charge between two points |
resistance | the opposition to the flow of eclectic charge |
electric circuit | 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 follow |
parallel circuit | electric charges have more than one path that they can follow |
magnet | any material that attracts iron or objects made of 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 | when electric currents and magnetic fields interact with eachother |
electromagnet | combines the magnetic field of solenoid with the magnetic field of the magnetized iron ocrd |