Term |
Definition |

reference point |
An agreed upon position from which motion can be measured (ex. a tree, a building, a map or a coordinate plane). |

Newton's first law |
An object at rest will stay at rest and an object in motion will stay in motion at a constant speed in the same direction unless acted upon by an unbalanced force. |

Newton's third law |
For every action, there is an equal and opposite reaction. |

mass |
The amount of matter in an object. |

Kilograms |
A unit of measurement of mass |

motion |
A change in position. |

Newton's second law |
An object acted upon by an unbalanced outside force will accelerate in the direction of the force. The amount of acceleration depends upon the force applied and the mass of the object. |

force |
A push or a pull |

acceleration |
A change in direction and/or speed. A change in velocity. |

velocity |
speed AND direction |

speed |
how fast something is moving |

F=MxA |
The force of an object is equal to its mass times its acceleration. |

distance/time |
the formula for speed |