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
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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Applets:
Newton’s Cannon: Click here
ESRI Satellite Xplorer: Click here

Demonstrations: Click here

Video Explanations: Click here

Worked Examples: Click here