What did gravity create when 99% of the gas and dust materials were gathered into the center of a flattened disc during the formation of the solar system?(1 point)
Responses
the moons of planets
the moons of planets
the planets
the planets
the sun
the sun
the asteroid belt
the planets
How were the planets in the solar system formed?(1 point)
Responses
The dust particles were attracted by gravity from distant galaxies.
The dust particles were attracted by gravity from distant galaxies.
The gas particles released by the sun were pulled away and became solid.
The gas particles released by the sun were pulled away and became solid.
The remaining materials from the sun's formation clumped together due to gravity.
The remaining materials from the sun's formation clumped together due to gravity.
The solid materials were forced out of the sun's disc and cooled down.
The remaining materials from the sun's formation clumped together due to gravity.
What prevents the gravity of the sun to pull all of the planets towards it?(1 point)
Responses
the sun's weak gravity
the sun's weak gravity
the size and shape of the planets around the sun
the size and shape of the planets around the sun
the large distance of the planets from the sun
the large distance of the planets from the sun
the planets' speed as they orbit the sun
the planets' speed as they orbit the sun
Which change in the sun’s gravity would occur if the sun’s mass were reduced by one-half?(1 point)
Responses
It would be unchanged.
It would be unchanged.
It would be doubled.
It would be doubled.
It would be halved.
It would be halved.
It would be zero.