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Unit 3 Lesson 2

TermDefinition
Law of Universal Gravitation Every object in the Universe attracts every other object with a force directed along the lines of centers for the two objects that is proportional to the product of their masses and inversely proportional to the square between the two objects
Gravity Is a force of attraction between objects that is due to their masses and the distances between them.
Orbit Is the path that a body follows as it travels around another in space
Aphelion When an object follows an elliptical orbit around the Sun,there is one point,Where the object is farthest from the Sun
Perihelion Where the object is closest to the Sun
Solar Nebula When a cloud of dust and gas collapse ,this cloud from which the solar system formed
Centripetal The inward force that causes an object to move in a circular path
Created by: Kendy Thach
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