Across |

1. | ______ hill. The highest hill in a roller coaster. It gives it potential energy. |

3. | _________ G force. A force greater than the normal force of gravity in which a person feels heavier than normal. |

4. | __________ induction motor. A type of motor used in roller coasters to move cars up a hill by use of electromagnets. |

7. | The change in level from horizontal to pitched on race tracks to reduce centrifugal inertia or outward force |

9. | ___________ acceleration. The acceleration of an object as it goes around a curve. [equals velocity squared divided by the length of the radius). |

10. | Newton's ____________ Law of Motion. Force equals mass times acceleration |

14. | A change in velocity over time or a change in direction |

15. | __________ velocity. The total distance a coaster travels divided by the total time it takes to travel that distance. |

18. | Free _____ diagram. A vector drawing which shows the forces on an object and their resolution into a final resultant force. |

19. | The inward directed force which keeps objects moving in a circle (example, a ball on the end of string is kept in a circle by the string) |

20. | Distance divided by time |

21. | A device which measures angles and is used to determine the height or distance of remote objects. |