Clicker questions

1
Clicker questions

• Friday Feb. 13, 2009

2
Why are there very few asteroids beyond 3 AU from
the Sun?

1. The forming solar system had no rocky material
   beyond 3 AU from the Sun, so asteroids couldnt
   form out there
2. Heavy asteroids sink towards the center of the
   solar system (the Sun)
3. Ice could form beyond 3 AU from the Sun, so
   objects forming out there didnt stay the size of
   asteroids

3
Which explanation for the asteroid belt is the
correct one?

1. The belt is where asteroids happened to form.
2. The belt is the remnant of a large terrestrial
   planet that used to exist between Mars and
   Jupiter.
3. The belt is where asteroids happened to survive
   until today.

4
What should we consider Pluto to be?

1. A planet
2. A dwarf planet
3. A Kuiper belt object
4. None of the above