Mission WE9: Work-Energy Conversions

Mission WE9 focuses on situations in which the mechanical energy of an object is transformed into non-mechanical energy (or vice versa). You should know the conditions under which such energy transformations occur. The mission consists of 36 questions organized into 9 Question Groups. You must answer one question from each Question Group to complete the mission. The learning outcomes for this mission are ...

Learning Outcomes

  • The student should be able to identify the conditions in which mechanical energy is not conserved and demonstrate an understanding of the distinction between energy conservation and non-conservation.
  • The student should be able to apply the work-energy relationship to simple physical situations.


Launch Mission WE9


Getting Help

If you are not familiar with this topic, then you should first learn about the topic using our written Tutorial or our Video Tutorial:

The Physics Classroom - Work, Energy and Power Unit, Lesson 2, Part b


Video Tutorials:

Forces, Energy and System Analysis

External Energy Transfer



Question-Specific Help

Each Question Group has its own Help page with information specific to the question. You can access the Help page from within the mission by tapping on the Help Me! icon (textbook). For your convenience, links to those pages are provided below: