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Unit 3 Lesson 1-5
Electricity and Mangnetism
| 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 |
| electric 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 insulators but not as well as 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 electric charge |
| electric circut | a complete, closed path through which electric charges can flow |
| series circuit | all parts are connected in a row that forms one path for the electric charges to follow |
| parallel circiut | electric charges have more than one path that they can follow |
| magnet | describe 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 where magnetic force can be detected |
| electromagnetism | when electric currents and magnetic fields interact with each other |
| electromegnet | when you wrap a solenoid around an iron core |