| A | B |
|---|
| electricity | electrical energy |
| current | flow of electrons in a circuit |
| closed circuit | allows electrical energy to flow |
| open circuit | does not allow electrical energy to flow |
| dry cell | energy source for a closed circuit [flashlight] |
| series circuit | only one pathway for flow of electricity |
| parallel circuit | 2 or more pathways for flow of electricity |
| conductor | material electricity easily passes through; [copper, aluminum, silver, water] |
| insulator | material that electricity does not easily pass through [air, wood, rubber, plastic] |
| resistance | slows the force of electrons |
| low resistance | electicity passes through |
| high resistance | stops or slows flow of electrons |
| light, heat and mechanical energy | electrical energy changes to these |
| static electricity | produced from rubbing certain material together |
| lightning | a form of static electricity |
| magnets | materials that attract iron |
| poles | parts of magnet with strongest force |
| permanent magnet | magnet that does not lose magnetism |
| electromagnet | magnetic fields created by magnet and electicity |
| Benjamin Franklin | discovered lightning is electricity [static] |
| Michael Faraday | discovered electromagnetism |
| Thomas Edison | invented light bulb, phonograph, electric locomotives |
