http://www.ck12.org Chapter 9. Newton’s Universal Law of Gravity
CHAPTER
9 Newton’s Universal Law of Gravity
Chapter Outline
9.1 Kepler’s Laws
9.2 NEWTON’SUNIVERSALLAW OFGRAVITY
9.3 CIRCULARORBITS
9.4 REFERENCES
We know gravity as the force pulling downwards on everyday objects. The principles of gravity, however, apply on
a much larger scale, and were discovered from study of the solar system. This chapter will cover Kepler’s Laws of
Planetary Motion, Newton’s Universal Law of Gravity, and the mechanics of circular orbits.