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# Physics - Motion

### general terms for Motion

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

Frame of Reference | point of view of motion with labeled reference points to allow measurements |

Position | Location or coordinates |

Distance | how far, a length (ex. 5m) |

Displacement | The change in position with direction. (final position - initial position) (ex. 10 m East) |

Speed | how fast (ex. 10 m/s) |

Velocity | how fast in a given direction (ex. -15 m/s) |

Average speed | =(total distance / total time) |

Instantaneous Speed | speed at a specific moment of time |

Scalar quantity | quantities that are fully described by a magnitude (or numerical value) alone. (ex. Mass, distance, speed) |

Vector quantity | quantities that are fully described by both a magnitude and a direction. (ex. Weight, Displacement, velocity) |

Constant | without changing |

X-t graph | Graph of position and time. Slope is velocity |

Motion map | Diagram of position and veclocity arrows that is used to show an objects motion |

V-t graph | Graph of Velocity vs time. Slope is acceleration. (Area under the curve is displacement.) |

[m] | the unit of meter. used with distance and displacement |

[m/s] | the unit of meter per second - used with speed and velocity |

[m/s^2] | the unit of meter per second squared - used with acceleration |

Created by:
Langerphysics