Ch 6 science test – part 2 KB – Flashcards
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the sun and the objects traveling around it
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solar system
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NINE in the our solar system
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planets
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a path of a planet around the sun
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orbit
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the number planet Earth is from the sun
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third
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365 days - the time it takes Earth to revolve around the sun
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year
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force of attraction between the Sun and Earth
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gravity
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the two measurements that gravity depends on
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mass & distance
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(strength of gravity) is determined by how close two objects are
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stronger
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what Newton's ideas were called to describe gravity and its relationship to objects
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universal
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how the planets are kept on their orbit
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Sun's gravity
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the tendency of an object to keep moving in a straight line
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inertia
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what keeps planets in their orbits
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gravity + inertia
