1. Jupiter is named for the god _____________. Zeus Hercules Apollo Ares

2. What is the mass of Jupiter? 10 times that of Earth 512 times that of Earth half that of Earth 318 times that of Earth

3. Copernicus was the first person to look at Jupiter through a telescope. True False

4. How many Galilean satellites are there? Four Three Six Two

5. Io is the satellite believed to have subsurface water. True False

6. The four Galilean satellites are visible in most small amateur telescopes. True False

7. Which of the following spacecraft visited Jupiter? Surveyor 3 Viking 1 and 2 Voyager 1 and 2 Mariner 10

8. What was the name of the comet that slammed into Jupiter in 1994? Comet Hale-Bopp Comet Ajax Comet Halley Comet Shoemaker-Levy 9

9. There are at least _____________ satellites closer to Jupiter than the four Galilean satellites. Four One None Three

10. At least one of Jupiter's satellites is bigger than the planets Mercury and Pluto. True False

11. Jupiter spins in less than 10 hours. True False

12. The Great Red Spot on Jupiter is actually an atmospheric disturbance. True False

13. The surface of Callisto has no craters. True False

14. The Voyager spacecraft confirmed a very faint ring around Jupiter. True False

15. Jupiter's Great Red Spot (GRS) is visible in amateur telescopes. True False

16. Jupiter's diameter is _______________ kilometers. 143,000 250,000 88,000 66,000

17. Some of the hottest spots on Io are in excess of 2,000 Kelvin degrees. True False

18. The escape velocity of Jupiter is ____________ km per second. 11.6 86.3 67.5 59.6

19. Jupiter is the _____________ planet from the Sun. Sixth Third Seventh Fifth

20. Io revolves once around Jupiter in _______ Earth days. 1.77 7.15 3.55 16.7