The force of gravity

1. The force of gravity acting on an object is a measure of the gravitational pull acting on that object. 
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3. It is a force. 
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5. Mass is a measure of how difficult it is to make  the object go faster.
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7. The force of gravity acting on an object can change with location; gravity on the moon is 1/6 of earth
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9. the mass always stays the same.

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