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unit 10
| Question | Answer |
|---|---|
| gravity | the force of attraction between any two objects due to their mass |
| orbit | the path one object travels around another object |
| inertia | the tendency of a moving object to keep moving in a straight liine or of any object to resist a change in motion |
| revolution | one complete trip of one object around another object |
| rotation | a complete spin on an axis |
| phase | the apperence of the shape of the moon at a particular time |
| solar eclipse | a blocking of the sun's light that happens when earth passes throught the moon's shadow |
| lunar eclipse | a situation that occurs when earth, the sun, and the moon are in a straight line and earth's shadow falls across the moon |
| tide | the regular rise and fall of the water levelb along the shoreline |