| A | B |
|---|
| charge | electric force of a proton, electron, or an object having an unequal number of protons and electrons |
| conduction | the transfer of heat energy or electrons between objects in direct contact |
| induction | the transfer of electrons between objects that are not in direct contact |
| conductor | a substance through which electric charges or heat can move easily |
| insulator | a substance through which electric charges or heat can't move readily |
| electric current | flow of electric charge |
| circuit | a closed continuous path through which electric current flows |
| voltage | the amount of electric energy available to move a charge |
| resistance | the force opposing the flow of electric current |
| negative charge | electrons |
| positive charge | protons |
| no electric charge | neutrons |
| static electricity | electric charges at rest |
| electroscope | used to observe static electric charges |
| friction | the force of resistance that occurs when movement takes place between any two objects or substances that make contact |
| lightning | giant electric spark caused by static electricity |
| Ohm's law | the relationship among current, voltage, and resistancee |
| flow rate | number of electrons that pass a specific point in a circuit in one second |
| amperes | SI unit for current |
| thermocouples | used to control temperatures and as control devices(made of copper and iron wire in a loop) |
| joules/second | SI unit for power or watts |
| joule | SI unit for energy |
