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# Science 7

### Force and motion; calculating speed; graphing motion

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

Force | A push or a pull on an object |

Motion | A process of changing position. |

Balanced forces | Are two forces acting in opposite directions on an object, with a net force of 0 Newtons. |

Unbalanced forces | The net force of an object is not 0. |

Force diagram | A diagram showing all the forces acting on an object, the force's direction and its magnitude. |

Position | An object's distance and direction from a reference point. |

Direction | The path on which something is moving or pointing. |

Speed | The distance an object moves divided by the time it takes to move that distance. |

Average speed | The speed over an entire distance; average speed is equal to the total distance traveled divided by the total time. |

Distance | The amount of space between two points. |

Velocity | The speed AND direction of a moving object. |

Displacement | The difference between the initial, or starting , position and final position. |

Time | The thing that is measured as seconds, minutes, hours, days, years, and months etc. |

Unit rate | Rates expressed as a quantity of 1; 1 mm |

Conversion factor | Converting one set of units into an equivalent expressed in another. |

Graphs | A way to analyze the relationship between two sets of numbers. |

Distance time graph | A graph that shows how distance and time are related. |

Speed time graph | A graph that shows the speed of an object on the y-axis and time on the x-axis. It shows how the speed of an object changes during each interval of time. |

Created by:
Cchavez77