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15 Cards in this Set
- Front
- Back
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astronomy |
the study o moons, stars, and other objects in space. |
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axis |
the imaginary line that passed through Earth's center and the North and South poles in Earth's axis. It is tilted and it comes right done the middle of Earth at a slit angle. |
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rotation |
the spinning of Earth on its axis. |
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revolution |
the movement of one object around another. |
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orbit |
a path hat Earth follows as it revoles around the sun. |
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calendar |
a system of the organizing time that defines the beginning, length, and divisons of a year. |
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solstice |
when the sun is farthest north or south of the equator. |
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equinox |
when the noon sun is directly overhead at the equator, which happens twice a year. It also means equal night. |
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force |
a push of pull. |
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gravity |
a force that attracts all objects toward each other. |
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law of universal gravitation |
One of Newtons laws that states and says that every object in universe attracts every other object. |
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mass |
the amount of matter in a object. |
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weight |
The force of gravity on an object. |
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inertia |
The tendency of an object to resist a change in motion. |
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Newton's first law of motion |
The law that states that 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 a force. |
