1) What are the names of the four largest moons of Jupiter in order from closest to the planet to farthest? 2) If you were to mistake Europa for Ganymede, what effect would that have on the calculated mass of Jupiter? Explain. 3) Which of Jupiter's four largest moons has the shortest orbital period? 4) Which of Jupiter's four largest moons has the longest orbital period? 5) If Jupiter were to have less mass, but its moons orbited at the same distance as they do today, what could you say about their orbital periods? 6) If the universal gravitational constant were not really constant, but in fact were larger near Jupiter, what effect would that have on the calculated period of Jupiter's mass? Explain.