Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Ch 33 Physics EA

### Chapter 33

Term | Definition |
---|---|

electric field | a force field that fills the space around every electric charge or group of charges. |

field lines | vectors that describe the electrified web of space that will draw and repel other charges which it enters. |

electrical potential energy | energy a charge has due to its location in an electric field; |

electric potential | electric potential energy per coulomb at a location in an electric field; measured by volts and often called voltage |

volt | si unit of electric potential one volt is the electrical potential difference across which one coulomb of charge gains or loses one joule of energy |

voltage | electric potential; measure in volts. and potential difference. |

potential difference | the difference in electric potential between two points. free charges flow. |

electric current | the flow of electric charge, measured in amperes. |

voltage source | a device, such as a battery or generator, that provides a potential difference |

electric resistance | the resistance of a material to the flow electric current through without resistance |

direct current | electric current whose flow of charge is in one direction |

alternating current | electric current that repeatedly reverses direction, twice each cycle, 60 cycles per second. |

a force field that surrounds an electric charge or group of charges | electric field |

an electric field has both magnitude and | direction |

the concept of electrical potential energy per charge that has a special same | electric potential |

the SI unit of measurement for electrical potential | volt |

the name for electric potential measured in volts | voltage |

the energy a charge has due to its location is an electric filed | electrical potential energy |

this happens when there is a difference between the conductors which prevents charge flow | Potential Difference |

the flow of electric charge | electric current |

work | is done when a force moves something in the direction of the force |

there is no way to shield___ because it only attracts | gravity |

how can you shield an electric field? | surround the object with a conducting surface |

a volt is equal to | is equal to one joule/coulomb |

weaker test charge means | smaller field |

an electric field has both | magnitude and direction |

gravitational field | a force field that surrounds a mass |

acting at a distance | the contact between objects in an electric and gravitational field |

positive test charge | the direction of an electric field at any point is the direction of this |

vector quantity | has magnitude and direction, represented by vectors |

vectors | lines with arrows to show strength and direction of the field lines |

Created by:
544