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# Science Ch 8 Vocab

Question | Answer |
---|---|

ammeter | a device used to measure the current in a circuit. |

amperes | unit for measuring electric current. |

battery | a combination of electrochemical cells connected together that produces a potential difference. |

circuit diagram | a drawing using symbols to represent the different components of a circuit. |

current electricity | the continuos flow of charge in a complete circuit. |

electric circuit | a complete a pathway that allows electrons to flow. |

electric current | the amount of charge passing a point in a conductor. |

electric load | any device that transforms electrical energy into other forms of energy, such as a light bulb, buzzer, heater and motor |

electric potential energy | electric energy stored in a battery |

electric resistance | the ratio of voltage to current |

electrochemical cells | electrodes in electrolytes that convert chemical energy stored in charges. |

electrodes | two terminals in a battery or other electricity source. |

energy | the ability to do work. |

kinetic energy | energy a moving object has because of particles in matter. |

ohm | the unit of measurement for electrical resistance. |

ohmmeter | a device that measures resistance. |

Ohmâ€™s law | the mathematical relationship comparing voltage (V), current (I), and resistance (R), written as R=V/I |

Potential difference | the amount of electric potential energy per on coulomb of charge at one point in a circuit compared to the potential energy per coulomb of charge at another point in the circuit; also called voltage. |

resistance | the property of any material that slows down the flow of electrons and converts electrical energy into other forms of energy. |

resistor | an electrical component with a set amount of resistance that slows down current and transforms electrical energy into other forms of energy. |

terminals | the positive and negative end points of a battery. |

volt | the unit of potential difference |

voltage | the amount of electric potential energy per one coulomb of charge at one point in a circuit compared to the potential energy per coulomb at another point in the circuit. |

Voltmeter | a device that measures the amount of space taken up by a substance or object, usually measured in liters (L) or cubic centimeters. |

Created by:
jacob.harris