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20 Cards in this Set
- Front
- Back
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astronomy |
the study of stars,planets,and other objects in space |
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rotation |
the spinning of earth on it's axis |
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revolution |
the movement of objects around one another |
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soltisce |
when the sun is neither farther north or south |
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equinox |
equal night |
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force |
an push or pull on an object |
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gravity |
the pull of an object brought down to earth |
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law of universal gravitation |
states that every object has gravitational pull |
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mass |
the amount of matter in an object |
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weight |
is how much something wieghs |
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inertia |
is the tendency of an object to change motion |
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phases |
the different shapes of the moon you can see from earth. |
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eclipse |
is when an object in space comes between the sun and a third object it casts a shadow on the object |
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solar eclipse |
it occurs when a new moons blocks your view form the sun |
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umbra |
is the very darkest part of the moon |
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penumbra |
is the largest part of the shadow |
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lunar eclipse |
occurs at a full moon when earth is directly between the earth and the sun |
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tide |
the rise and fall of ocean water that every 12.5 hours |
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spring tide |
thier combined forces produce a tide with the greatest difference between high and low tides |
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neap tide |
a tide with the lowest difference between high and low tides |
