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TermDefinition
gravity a force of attraction between objects that is due to their masses between them.
orbit the path a body follows as it travels around another object
aphelion during earths orbit when the earth is the furthest away
perihelion during earths orbit when we are the closest to the sun
centripetal force the inward force that causes an object to move in a circular path
solar nebula a cloud which the solar system formed
protostellar disk a disk from which our sun was formed
planetesimal larger bodies of dust and particles from which planets formed
Created by: Dylan.Knanishu
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