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sun and moon
| Question | Answer |
|---|---|
| Astronomy | the study of the moon,sun,and other objects in space |
| Axis | an imaginary line that passes through earth’s center and the north and south poles about which earth rotates |
| Rotation | the spinning motion of a planet on its axis |
| Revolution | the movement of an object around another object |
| Orbit | the path of an object as it revolves around another object in space |
| Solstice | the two days of a year on which the sun reaches its greatest distance north or south of the equator |
| equinox | the two days of a year on which neither hemisphere is tilted toward or away from the sun |
| Gravity | force that attracts all objects toward each other; measured in Newtons. |
| law of universal gravitation | every object in the universe attracts every other object |
| Mass | the amount of matter in an object |
| Weight | force of gravity on an object |
| Inertia | the tendency of an object to resist change in motion |
| Newton’s First Law of Motion | an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by an unbalanced force. |
Created by:
ytorresbaron
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