Exploring the Solar System

What does the Solar System primarily consist of?

• Planets and stars

• Only the Sun and planets

• The Sun, planets, moons, asteroids, comets, dust, and gas

• The Sun, planets, and the moon only

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Who proposed the heliocentric model in 1543?

• Nicolaus Copernicus

• Johannes Kepler

• Aristarchus of Samos

• Isaac Newton

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Which planet is known for being the largest in our solar system?

• Earth

• Jupiter

• Saturn

• Mars

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NGSS.MS-ESS1-3

What is the main reason ancient definitions of a planet are problematic?

• They are based on modern science

• They include too many exceptions

• They exclude Earth

• They are too complex

What is the Kuiper Belt?

• A ring of gas around Neptune

• A collection of asteroids between Mars and Jupiter

• A region of icy bodies beyond Neptune

• A spherical cloud of comets surrounding the solar system

What event is believed to have triggered the formation of the Solar System?

• Collision with another galaxy

• The Big Bang

• A black hole passing nearby

• A nearby supernova explosion

Why are the inner planets rocky?

• They are closer to the Sun

• They have stronger gravity

• They are older than the outer planets

• They are made of different materials

What is the Oort Cloud?

• The atmosphere of the outer planets

• A vast spherical shell of icy objects far beyond Neptune

• A region inside the Kuiper Belt

• A cloud of gas and dust where stars are born

What does the flatness of the solar system indicate?

• The gravitational pull of the Sun

• The rotation of the Milky Way

• The original shape of the gas cloud it formed from

• The influence of solar winds

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How do we know the processes of solar system formation we observe today are similar to those that formed our own solar system?

• By theoretical simulations only

• Through direct observation of our solar system's formation

• By observing similar processes in other gas clouds and protoplanetary disks

• By historical records