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# Force And Motion 1+2

### Vocab for Force and Motion #1 and Force and Motion #2

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

Reference point | A specific location on an object or in an object's environment used to monitor change in position. |

Position | An objects location at a given time. (Where an object is) |

Initial Position | An objects starting position. |

Final Position | An objects ending position |

Delta | Change in value |

Distance | How much (the amount) an object's initial and final position change; always positive value |

Motion | A change in position |

Best fit line or line of best fit | A straight line drawn through the center of a group of data points. |

Increment | A fixed amount. |

Direct Relationship or Positive correlation | The x and y values data points both increase in value or they both decrease. |

Indirect relationship or positive correlation | The x value data points increase, but the y value data points decrease or the x value data points decrease, but the y value data points increase. |

Cyclic relationship | The x value data points and they value data points go up and down in a predictable pattern. |

Non-related relationship or scattered | There is no correlation between the x value data points and the y value data points. |

Speed | the distance an object travels in a unit of time; speed is a unit rate. |

Time | The distance between then and now |

Average speed | The TOTAL distance traveled by the object divided by the TOTAL amount of time to travel that distance |

Rate | a ratio used to compare different kinds of quantities. |

Unit Rate | A special rate that describes how many units of the first type of quantity corresponds to ONE unit of the second type of quantity |

Constant Speed | Speed that does not change; speed stays the same |