Astronomy - Chapter 2: The Planets Flashcards
1
Q
Name the planets in order from the Sun
A
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune (Plato)
2
Q
Two groups of planets
A
Terrestrial
Jovial
3
Q
Name the Terrestrial (Earthlike) planets
A
Mercury
Venus
Earth
Mars
4
Q
Name the Jovian (Jupiter like) planets
A
Jupiter
Saturn
Uranus
Neptune
5
Q
Jovian planets are often called…
A
giants
6
Q
Terrestrial planets, because of their position, are often called
A
inner planets
7
Q
The terrestrial planets are mostly ____ with minor gases
A
Rocks
8
Q
When can a gas molecule evaporate from a planet
A
when it reaches speed known as escape velocity
