| A | B |
|---|
| static electricity | build up of charges on an object |
| conductor | an object that allows electrons to flow easily through them |
| circuit | a completely closed path for the electric current to flow |
| current | the flow of electrons at a given time |
| electrons | an object becomes charged when the atoms in the object gain or lose ____________ |
| like charges | If two objects repel each other, then they have ___________ |
| lowering the temperature of the wire | doing this would lower the electrical resistance of a wire |
| alternating current (AC) | the outlets in your home provide _____________ |
| open circuit | a circuit that has gaps and does not form a continuous loop |
| power source | besides the wires and load (example = light bulb), what is the third part of an electric circuit |
| electric discharge | lightning is an example of this |
| static | two types of electricity are current and _________ |
| resistance | measures the opposition to electrons flowing through a current |
| current | measures the speed of electrons through a circuit |
| I | the symbol for current |
| R | the symbol for resistance |
| V | the symbol for voltage |
| series circuit | has only one pathway for electrons to flow |
| parallel circuit | has multiple pathways for electrons to flow |
| copper | an example of an electric conductor |
| Ohms | what resistance is measured in |
| conduction | an object being charged by direct contact |
| induction | an object being charged by indirect contact |
| Ohm's law | a circuit's voltageis equal to current multiplied by resistance |
| friction | a method charged by rubbing electrons from one object to another |
| length, thickness, temperature, and material | four factors that affect resistance in a wire |
| a switch on a circuit | controls flow of electrons (opens or closes circuit) |
| DC | type of current, but with only one direction |
| AC | type of current, but with two directions |
| electroscope | tool used to find out if an object is charged |
| voltage and current relationship | more voltage equals more current |
| resistance and current relationship | more resistance equals less current |
