Across |

2. | the acceleration of an object is equal to the net force acting on it divided by the objects mass. |

6. | is the product of an objects mass and its velocity. (mass X velocity |

7. | a force is measured in __________. (N) |

8. | is the over all force acting on an object . |

13. | is the tendency of an object to resist a change in its motion. |

14. | a force that opposes the motion of an object that touches as they move past each other. |

15. | is a measure of the inertia of an object and depends on the amount of matter the object contains. |

16. | fluid friction acting on an object moving through the air. |

17. | whenever one object exerts a force on a second object, the second object exerts an equal and opposite force on the first object. |

18. | is a force that opposes the direction of an object as it slides over a surface. |

20. | when a round object rolls across a flat surface. |