UNIVERSE
SOLAR SYSTEM FORMATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As the solar nebula collapsed, it became a disk because:
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the overall rotation of the nebula plus collisions between particles made the particles go in more or less the same direction
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the initial cloud was disk shaped
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the Sun’s gravity pulled the nebula material into the ecliptic plane
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the self-gravity of the nebula pulled the material into the ecliptic plane
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Explanation:
Detailed explanation-1: -Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula.
Detailed explanation-2: -Due to conservation of angular momentum-the velocity of rotation of an object around a central axis-the rotational speed of the cloud increased, and it flattened out. Think of pizza dough flattening into an enlarging disk as it’s tossed.
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