UNIT 04 - CONSERVATION OF ENERGY |

3. Conservation of Energy |

A) Students should understand the concepts of mechanical energy and of total energy, so they can: |

(1) State and apply the relation between the work performed on an object by non-conservative forces and the change in an object’s mechanical energy (C 4.17) |

(2) Describe and identify situations in which mechanical energy is converted to other forms of energy (C 4.18) |

(3) Analyze situations in which an object’s mechanical energy is changed by friction or by a specified externally applied force (C 4.19) |

B) Students should understand conservation of energy, so they can: |

(1) Identify situations in which mechanical energy is or is not conserved (C 4.20) |

(2) Apply conservation of energy in analyzing the motion of systems of connected objects(C 4.21) |

(3) Apply conservation of energy in analyzing the motion of objects that move under the influence of springs (C 4.22) |

(4) Apply conservation of energy in analyzing the motion of objects that move under the influence of other non-constant one-dimensional forces ()C 4.23 |

C) Students should be able to recognize and solve problems that call for application both of conservation of energy and Newton’s Laws (C 4.24) |

4. Power - Students should understand the definition of power, so they can: |

(A) Calculate the power required to maintain the motion of an object with constant acceleration (e.g., to move an object along a level surface, to raise an object at a constant rate, or to overcome friction for an object that is moving at a constant speed (C 4.25) |

(B) Calculate the work performed by a force that supplies constant power, or the average power supplied by a force that performs a specified amount of work (C 4.26) |