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- 1. Multiple Choice
Comets lose material when they get near ___planetsother cometsthe Sunthe outer solar system - 2. Multiple ChoiceHow long ago was our solar system formed?about 4.5 million years agoabout 9.2 million years agoabout 4.5 billion years agoabout 9.2 billion years ago
- 3. Multiple ChoiceOut in the chillier part of the Solar System, water came in the form of ___liquid waterice mixed with dustvapor mixed with dustwater vapor
- 4. Multiple ChoiceThe discussed model, describing the evolution of the Solar System, was named after ___the city of Nice, FranceNeapolitan ice creamthe city of Rome, Italythe planet Jupiter
- 5. Multiple ChoiceDuring the formation of the Solar System, which planet had the biggest effect on the iceballs?MarsSaturnUranusNeptune
- 6. Multiple ChoiceThe intense shower of objects that came screaming down from the outer solar system is called ___the Early Heavy Cataclysmthe Late Heavy Cataclysmthe Early Heavy Bombardmentthe Late Heavy Bombardment
- 7. Multiple ChoiceThe doughnut-shaped region, just past Neptune, where icy objects have stable orbits is called ___the Gerard Beltthe Scattered Diskthe Kuiper Beltthe Kuiper Disk
- 8. Multiple ChoiceThe second region of objects, composed of iceballs with highly tilted orbits, is called ___the scattered diskthe Kuiper diskthe Kuiper Beltthe concentrated ring
- 9. Multiple ChoiceThe scattered disk extends about ___ times farther out than Neptune.252550
- 10. Multiple ChoiceThe third region of icy objects, a spherical cloud which starts roughly 300 billion kilometers out, is called ___the Oort Cloudthe Oort Diskthe Kuiper Cloudthe scattered disk
- 11. Multiple ChoiceThe Oort Cloud starts about 70 times farther out than Neptune and extends as much as ___half a light yeara light yearten light years70 light years
- 12. Multiple ChoiceComets that originate in the Oort Cloud have long orbits that are close to being ___circularellipticalparabolichyperbolic
- 13. Multiple ChoiceThe Oort Cloud is the origin of ___short period asteroidslong period asteroidsshort period cometslong period comets
- 14. Multiple ChoiceThe scattered disk is the source of ___short period asteroidslong period asteroidsshort period cometslong period comets
- 15. Multiple ChoiceWhat was the first Kuiper Belt Object to be discovered?NeptunePlutoHalley's CometComet Hale–Bopp
- 16. Multiple ChoicePluto orbits the Sun on an elliptical, mildly-tilted path, which brings it closer to the Sun than ___UranusSaturnJupiterNeptune
- 17. Multiple ChoiceWhenever Pluto is closest to the Sun, Neptune is always ___near enough to collide90° away in its orbitwell above the plane of the solar system180° away in its orbit
- 18. Multiple ChoiceSmall bodies in the region of the Kuiper Belt and in resonance with Neptune are called ___NeptunosNeutrinosPlutinosKuiperos
- 19. Multiple ChoiceAfter discovering Pluto, how long was it until the next Kuiper Belt object was found?less than 6 monthsabout two yearsabout 30 yearsmore than 60 years
- 20. Multiple ChoiceWhich Kuiper Belt object is very close to Pluto’s size and is more massive?ErisNeptuneCharon1992 QB1
- 21. Multiple ChoiceWhich moon of Pluto was discovered in 1978 and has about 1/8th the mass of Pluto itself?CharonStyxHydraKerberos
- 22. Multiple ChoiceIn relative size, Pluto is ___about the size of Earthlarger than Earth’s Moonabout the size of Earth’s Moonsmaller than Earth’s Moon
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