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# Physics-Force/Motion

Question | Answer |
---|---|

Acceleration | change of velocity over time (increasing, decreasing, or changing direction) |

Constant acceleration | a steady change in velocity (free falling near the surface of the Earth) |

Speed-time graphs | speed axis and time axis combine to show the acceleration via the slope |

Negative acceleration | when an object is slowing down over time |

Positive acceleration | when an object is speeding up or gaining speed |

Unbalanced forces | cause an object to move or accelerate |

Balanced forces | does not move and net force equals zero |

Inertia | property of matter that resists change |

Newton’s 2nd Law of Motion | acceleration of an object is equal to the net force acting on it divided by the object’s mass |

Newton’s 3rd Law of Motion | one object exerts force on a second object, the second object exerts an equal and opposite force on the first object (action/reaction forces) |

Centripetal force | force that keeps an object moving in a circle |

Speed | |

Velocity | v = d/t |

Weight | mass x acceleration due to gravity |

Created by:
sabbourjj