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D - Science - Unit 5
Unit 5 Vocab
| Term | Definition |
|---|---|
| force | any push or pull on an object |
| gravity | a force that attracts and pulls all objects toward each other |
| law of universal gravitation | states that every object in the universe attracts every other object |
| mass | the amount of matter in an object |
| weight | the force of gravity on an object |
| inertia | the tendency of an object to resist change in motion |
| Newton's law | an object will stay in motion unless an opposing force is applied to it |
| Newtons | unit that measures gravity |
| phases | the different shapes of the moon you see from earth |
| eclipse | the shadow that is cast on an object when an object in space comes between the sun and a third object |
| solar eclipse | occurs when the moon blocks sunlight from the earth during the new moon phase |
| umbra | the darkest part of the moon's shadow that is cone-shaped and is seen when light is completed blocked during a total solar and lunar eclipse |
| penumbra | the lighter part of the moon's shadow, that can be seen during a partial solar and lunar eclipse |
| lunar eclipse | occurs when the moon passes through earth's shadow and the earth blocks sunlight from the moon during the full moon phase |
| tide | the rise and fall of the ocean water that occurs every 12.5 hours |
| spring tide | a tide just after a new moon or full moon, when there is the greatest difference between high and low tides |
| neap tide | a weak tide just after the first or third quarters of the moon when there is the least difference between high and low tides |
| New Moon phase | the moon phase when the moon is between the sun and the earth and no moon is seen |
| Waxing Crescent phase | the moon phase where a small part of the moon appears lighted and grows larger on successive days |
| First Quarter phase | the moon phase where the right half of the moon appears lighted, with the lighted part growing larger on successive days |
| Waxing Gibbous phase | the moon phase where more than half of the moon appears lighted, with more and more becoming lighted on successive days |
| Full Moon phase | the moon phase when the Earth is between the sun and the moon and you see the fully lit face of the moon |
| Waning Gibbous phase | the moon phase where more than half of the moon appears lighted, with less and less becoming lighted on successive days |
| Third Quarter phase | the moon phase where the left half of the moon appears lighted, with the lighted part growing smaller on successive days |
| Waning Crescent phase | the moon phase where a small part of the lighted moon is visible and grows smaller on successive days |
| waxing | getting larger (maxing) |
| waning | getting smaller |
| gibbous | larger part of moon is lit up |
| crescent | sliver of moon is lit up |
| axis | imaginary line from the north & south poles that are tilted at a 23.5 degree angle |
Created by:
lprinke
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