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Science
Electricity
| Term | Definition |
|---|---|
| Electric force | surrounds every electric charge and exerts force that attracts ot repels other electric charges |
| charging methods | contact or induction (gettign close) |
| voltage | force that pushes electrons (v) |
| current | net movement/flow of electrons mesured in amps (i) |
| Resistance | measured in ohms (r) |
| Fuse | Metal that melts |
| circuit breaker | metal that bends to open circuit |
| grounding | safe path for electricity to get to ground |
| Electric power | related to voltage diff and current |
| Electric power formula | power(watts)=(current/amps/i)x(volts) |
| elctrical energy | rate at which electrical power is changed to other form measured in kWh |
| electrical energy formula | kWh=watts x hours energy=power x time |
| dry cell | electrodes in electrolyte PASTE, ex: aa, c ,d, 9v |
| wet cell | electrodes in electrolyte SOLUTION, ex: car/motox battery |
| generators | provide ac current, usa=60 times/sec, measured in hertz (60Hz) |