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unit 3 lesson 1-4
electricity and magnetism
Term | Definition |
---|---|
electric charge | is a property that leads to electromagnetic interactions between the particles that make up matter |
static electricity | is the buildup of electric charge on an object |
electrical conductor | is a material through which charges can move freely |
electrical insulator | is a material through which cannot move easily |
semiconductor | are a special class of materials that conduct electric charge better than electrical insulators but not as well as electrical conductors |
electric current | rate of flow of electric charges |
resistance | the opposition to the flow of electric charge |
voltage | is the amount of work required to move each unit of change between two points |
electric circuit | a complete closed path through which electric charges can flow |
series circuit | all parts are connected in a row that forms on path for the electric charges to follow |
parallel circuit | electric charges have more tan one path that they can follow |
magnet | any material that attracts iron or objects made of iron |
magnetic pole | two magnets cab push each other apart because of there ends |
magnetic force | when you bring magnets together they next exert a push or pull |
magnetic field | the area surrounding a magnet where magnetic forces can be detected |
electromagnetism | results when electric currents and magnetic fields interact with each other |
electromagnet | combines the magnetic field of the solenoid with the magnetic field of the magnetized iron core |