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# Physics Motion in 1D

### Motion in one dimension Study Guide

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

Distance/time | Velocity |

Velocity/time | Acceleration |

Is speed a scalar or a vector quantity? | scalar |

What is the acceleration of all free falling objects in m/s/s? | 9.8 |

If a car accelerates from 10 mph to 20 mph in 10 seconds, what is it’s average velocity in m/s? | 15 |

Which factor determines the speed of a falling object? | gravity |

A vector is represented as a(n) _______. | arrow |

Magnitude and direction are 2 characteristics of a ___________ | vector |

The slope of a distance vs. time graph represents the | velocity |

f you go 10 m north and then 5 m south, what is your displacement in meters? | 5 |

When you look at a speedometer in a moving car, you see the car’s _____________ speed. | instantaneous |

The rate at which velocity changes is called _______________ | Acceleration |