This note consists of Short Youtube Lecture Videos for each subtopic. Source: Andy Masley, IB Physics Teacher, 
https://andymasley.com/6-circular-motion-gravitation/
6.1: Circular Motion
Video Lectures: Equations Given in the IB Test Packet:
6.2: Newton's Law of Gravitation
Video Lectures:Equations Given in the IB Test Packet:
Background Picture: ​https://www.techexplorist.com/new-way-measure-earth-gravity/27847/