What distinguishes irregular moons from regular moons?
Earth has two moons!

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Physics, Science, Geography
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They are larger than regular moons.
They are formed from the planet's debris.
They are captured objects with eccentric orbits.
They have a stable orbit around the planet.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is Earth's second moon, 2020 CD3, considered temporary?
It is too small to be seen.
It will be ejected due to its chaotic orbit.
It is a regular moon.
It is not influenced by Earth's gravity.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a quasi-satellite?
A captured object with a stable orbit.
A satellite that is influenced by the Sun's gravity.
An asteroid that orbits the Sun with a path similar to Earth's.
A moon that orbits the Earth directly.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't quasi-satellites be classified as true moons?
They are larger than regular moons.
They do not orbit Earth directly.
They are too far from Earth.
They are not influenced by Earth's gravity.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the hill sphere of a planet?
The size of a planet's largest moon.
The distance at which a planet can capture moons permanently.
The area where a planet's gravity dominates over the Sun's.
The region where the Sun's gravity is stronger than the planet's.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why do gas giants have more captured moons than Earth?
They have more regular moons.
They have larger hill spheres.
They are closer to the Sun.
They are less massive than Earth.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is necessary for Earth to permanently capture a moon?
A direct orbit around the Sun.
A larger hill sphere than the Sun's influence.
A stable orbit without any gravitational influences.
Precise gravitational interactions, possibly with the help of the Moon.
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