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15 Cards in this Set
- Front
- Back
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Force |
A push or pull |
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Gravity
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Attracts all object toward each other
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Law of Universal Gravitation
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Every object attracts each other
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Mass |
The amount of matter in an object |
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Inertia |
The tendancy of an object to resist change in motion |
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Newton's First Law of Motion |
An object at rest will stay in rest and an object in motion will stay in motion unless acted upon by another force |
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Weight |
The force of gravity on an object |
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Astronomy |
The study of the stars, moon, and other objects in soace |
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Axis |
The imaginary line that goes through the center of Earth |
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Rotation |
The spinning of Earth on it's axis |
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Revolution |
The movement of one object around another |
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Orbit |
The path an object follows as it revolves around another object |
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Calendar |
A system of organizing time that marks the beginning, end, and divisions of a year
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Solstice |
When the sun is farthest North or South of the equator. It has either the longest or shortest day of the year, and the length is opposite for the different hemispheres |
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Equinox |
When there are 12 hours of say and of night |
