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20 questions
Which planet is the only one in the Solar System to have a barycenter outside of the Sun?
Earth
Saturn
Jupiter
Neptune
30
3
3.11
5.48
10
What is the cube root of 100?
4.64
10
300
1,000,000
Kepler's Third Law states that p2 = a3, when p is the orbital period (measured in Earth years) and a is the semimajor axis (measured in AU). If an unknown planet's orbital period (p value) is 5 Earth years, what is its semimajor axis (measured in AU)?
5
2.92
125
25
Based on Kepler's Third Law, which of the following planets has the shortest orbital period?
Earth
Neptune
Jupiter
Venus
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