1. What is Pluto?

a. A dwarf planet.
b. A minor planet.
c. The largest object in the Kuiper Belt.
d. The larger body in a double planet system.
e. All of the above.

2. Back in 1989, when there were nine major planets, which one was the furthest from the Sun?

a. Pluto.
b. Neptune.
c. Uranus.
d. Saturn.
e. None of the above.

3. How do objects in the Asteroid Belt and Kuiper Belt compare?

a. They have similar orbital eccentricities.
b. They have similar orbital inclinations.
c. They range in size from 1,000 or 2,000 km down to small irregularly-shaped objects.
d. Their orbits are affected by resonances.
e. All of the above.

4. If a Centaur got kicked into the inner Solar System, what would it look like?

a. It would still look like a Centaur.
b. Like an asteroid.
c. Like a large meteoroid.
d. Like a very large comet.
e. None of the above.

5. By mass, the dominant component of a comet is ...

a. hydrogen.
b. ices.
c. Ground-up rock.
d. rock and/or metals.
e. metals.

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Last modified 22 April, 2007. © Gregory C. Sloan.