Sprint 90 · Chapter 7

Earth Satellites: Orbital Speed And Period

Gravity as the centripetal force: orbital speed and period, Kepler's third law for satellites, and weighing Mars, the Earth and the Sun from their orbits.

1. 1Gravity Supplies the Centripetal Force
2. 2Weighing Mars and Its Year
3. 3Weighing the Earth Two Ways
4. 4Your Turn: A Higher Orbit
5. 5Weigh the Sun and Jupiter
6. 6A Star Circling the Galaxy