Astronomers have found over 400 planets orbiting stars. The discovered planets have a variety of compositions, masses, and orbits. Despite the variety, the universal rules of physics and chemistry allow scientists to broadly categorize these planets into just a few types: Gas Giant, Carbon Orb, Water World, and Rocky Earth. Table 1 shows the composition of the various planet types and typical mass ranges relative to Earth.
Table 2 shows a sampling of planets orbiting various stars described in Table 1. These planets are merely numbered 1-7. Table 2 details the masses and orbital radii of the planets.
1. The data in Table 1 and Table 2 support which of the following statements?
A. Gas Giant planets have the largest orbital radii.
B. Orbital radius is directly related to mass.
C. Orbital radius is inversely related to mass.
D. The data does not support a correlation between mass and orbital radius.
2. According to Table 1 and Table 2, which of the following stars has the most massive Gas Giant planet orbiting it?
F. Gliese 777
G. OGLE TR 132
H. PSR 1257
J. Gleise 581
3. If a new planet were discovered, with a mass of 325, an orbital radius of 1.5, and a composition of mostly hydrogen, what would be its most likely classification?
A. Carbon Orb
C. Rocky Earth
D. Gas Giant
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