17-1 Physics I Class 17 Newton’s Theory of Gravitation
17-2 Forces Known to Physics
17-3 Forces in Physics 1 (so far)
17-4 Newton’s Theory of Gravitation
17-5 Newton’s Law of Universal Gravitation
17-6 Properties of Gravity
17-7 If Gravity Varies As 1/r 2, Where Does g = 9.8 m/s 2 Fit In?
17-8 Gravity is a Conservative Force
17-9 We Have Two Formulas for Gravitational Potential Energy!
17-10 Class #17 Take-Away Concepts
17-11 Class #17 Problems of the Day
17-12 Class #17 Problems of the Day
17-13 Activity #17 Gravitation
17-14 Class #17 Optional Material Part A - Kepler’s Laws of Orbits Material on Kepler’s Laws thanks to Professor Dan Sperber
17-15 Kepler’s Three Laws of Planetary Motion 1. The Law of Orbits: All planets move in elliptical orbits having the Sun at one focus. 2. The Law of Areas: A line joining any planet to the Sun sweeps out equal areas in equal times. 3. The Law of Periods: The square of the period of any planet about the Sun is proportional to the cube of the semi-major axis of its orbit.
17-16 Kepler’s Three Laws of Planetary Motion
The Law of Areas
The Law of Periods
ENERGY IN CIRCULAR ORBITS
17-20 Class #17 Optional Material Part B - General Relativity Material on General Relativity thanks to Albert Einstein
17-21 Where Did Newton Go Wrong? (Again!)
17-22 The Principle of Equivalence
17-23 The Principle of Equivalence
17-24 General Theory of Relativity
17-25 Black Holes
17-26 If Newton’s Gravity isn’t true, why do we still use it? Massive Black Holes In Galaxies NGC 3377, NGC 3379 And NGC 4486B