Mission CG4: Centripetal Force Requirement

Mission CG4 pertains to the concept of a centripetal or inward-directed force. You will have to have a strong enough understanding of the concept to identify the type of force that acts centripetally and to compare the relative magnitudes of an inward and an outward force. 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 use the centripetal force requirement to identify the force which act centripetally in order to cause an object to move in circular motion.
  • The student should be able to analyze a physical situation involving circular motion and compare the magnitude of the individual forces which act upon an object.


Launch Mission CG4


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 - Circular Motion Unit, Lesson 1, Part c


Video Tutorials:

Centripetal Force Requirement



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: