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# phisyics kw

### phisiycs notes

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

what is the streangth of gravity | 9.8m/s2 |

what is megnatuid | a velocity that has a derction |

what is velosity | speed in a general direction |

what is acceleration | change in speed or direction |

what is the equation for distanc relavit to acceleration | 1/2at^2 |

what is a vector | an arrow drawn to scail to represent a magnetud |

what is a resultant | the adding of two vectors |

what isa projectile | an object in motion |

what is trojectory | the psth s projectile takes |

what is force | any push or pull |

what is friction | the force of 2 obfects as they move past each other |

whst is inertia | and objects resistanc to change in motion |

what is newtons first law | an object at rest stays at rest unless acted on an outside force |

what is mass | the mesure of an objects inertia |

what is newtons second law | the net force on an object is porortional to the forces magnetude |

what is newtons third law | every force has an equel and opessit reaction |

what is a mechine | a divice for changing or rederecting force |

what is a newton | the SI unit for force |

what is a watt | the Si unit for power |

what is freefall | motion under the influenc of gravity |