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ASTRO 1 EXAM 2 NEWEST 2025 ACTUAL EXAM
COMPLETE 150 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
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Which of the following is NOT a characteristic of the inner planets?
- They are smaller than the outer planets.
- They all have solid, rocky surfaces.
- Their orbits are relatively closely spaced.
- They all have substantial atmospheres.
- They have very few, if any, satellites. - CORRECT
ANSWER-D. They all have substantial atmospheres.
Which is NOT one of Jupiters Gallilean Moon's?
- Io
- Europa
- Ganymede
- Callisto
- Tritan - CORRECT ANSWER -E. Tritan 1 / 4
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What moon is NOT massive enough to be a planet if it orbited the Sun?
- Ganymede
- Titan
- Europa - CORRECT ANSWER -C. Europa
Which of Jupiters moons is volcanically active?
- Io
- Europa
- Ganymede
- Callisto - CORRECT ANSWER -A. Io
Which of Jupiters moons has the largest mass?
- Io
- Europa
- Ganymede
- Callisto - CORRECT ANSWER -C. Ganymede
Which of Jupiters moons potentially has a subsurface ocean?
- Io 2 / 4
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- Europa
- Ganymede
- Callisto - CORRECT ANSWER -B. Europa
Which of Jupiters moons is a large cratered ice ball?
- Io
- Europa
- Ganymede
- Callisto - CORRECT ANSWER -D. Callisto
Saturn has the same radius as Jupiter but is only ____ of the mass.
A. 15%
B. 20%
C. 25%
D. 30% - CORRECT ANSWER -B. 20%
Saturn - CORRECT ANSWER -6th planet complex ring system many moons, including Titan
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Uranus and Neptune are only ___ times the radius of Earth, while Saturn and Jupiter are 10 times.
- 4
- 5
- 2
D. 3 - CORRECT ANSWER -A. 4
Uranus and Neptune composition - CORRECT ANSWER - water, methane, ammonia, some H, He, and rock
Uranus axis tilt - CORRECT ANSWER -extreme about 98 degrees on its side
Which major moon of Neptune rotates backwards?
- Titan
- Io
- Tritan
- Europa - CORRECT ANSWER -C. Tritan
Dwarf Planets - CORRECT ANSWER -massive enough to for own gravity to make them round icy, comet-like composition
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