Fill in the blanks with the term that best completes the following sentences.
1.) ____________is a force that attracts all matter to each other.
2.) When the only force affecting an object is gravity, that object is in ___________.
3.) An object traveling around another object in space is in ____________.

4.) The gravitational attraction between two objects will ____________if one objects acquires more mass.
5.) The gravitational attraction between two objects will _______________if the objects move farther apart.