7.1 LAW OF universal GRAVITATION
7.1.1 Gravitational Force
7.1.2 Satellite Motion
7.1.3 Geostationary and Other Orbits

7.2 GRAVITATIONAL FIELD 9
7.2.1 Gravitational Field Strength
7.2.2 Gravitational Field of a Point Mass
7.2.3 Earth’s Gravitational Field
7.2.4 True g and Apparent g

7.3 GRAVITATIONAL POTENTIAL ENERGY:
7.3.1 Why is GPE always negative?
7.3.2 Derivation of the GPE Formula
7.3.3 Escape Velocity
7.3.4 Energy of Satellites

7.4 GRAVITATIONAL POTENTIAL
7.4.1 Potential vs GPE
7.4.2 Gravitational Potential of a Point Mass

7.5 GPE GRADIENT AND POTENTIAL GRADIENT
7.5.1 GPE Gradient and Potential Gradient

APPENDIX A:
Weight, Weight and Weight

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For the PDF version, click here.

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Applets:
Newton’s Cannon: Click here
SpaceBook Satellite Tracker: Click here

Demonstrations: Click here

Video Explanations: Click here

Worked Examples: Click here