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# accelerated

### chapter 4 vocabulary terms

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

Acceleration | Is the rate of change in the speed of an object. |

free fall | an object is in free fall if it is moving under the influence of gravity. |

accceleration due to gravity | the acceleration of 9.8 m/sec^2 is important it is given its own name and symbol |

time of flight | if a problem asks for the time of flight remember that an object takes the same time goiing up as it takes coming down. |

air resistance | air resistance is so small it may be neglected |

terminal speed | the maximum speed at which an object falls when limited by air friction |

slope | slope of a graph is equal to the ratio of rise to run |

delta | translates to the change in |

constant acceleration | has the same speed that changes by the same amount every sec |

uniform acceleration | motion with constant acceleration appears as a sloped straight line on a speed versus time graph |

term | a piece of an equation |

initial speed | the first term of the formula is the speed the object starts with |