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Unit 1 Science 10/18
science test
| Term | Definition |
|---|---|
| orbit | the path an object follows as it moves around another object |
| revolution | the motion of one object around another object |
| rotation | a spinning motion |
| solstice | a day when Earth's rotation axis is the most toward or away from the Sun |
| equinox | a day when Earth's rotation axis is leaning along Earth's orbit, neither toward or away from the Sun |
| Sputnik | the very first man-made satellite |
| NASA | an American administration that started in response to the launch of Sputnik |
| maria | a dark, flat region on the surface of the moon |
| phase | different ways the moon looks from Earth |
| Waxing Phase | the moon gets bigger |
| Waning Phase | the moon gets smaller |
| tide | rising and falling of the sea level |
| neap tides | when the sun, moon, and earth form a 90 degrees angle |
| spring tide | occurs on a full or new moon, high-high tides, low-low tides |
| How many days does does it take the moon to revolve around Earth? | 27.3 days |
| What year was Sputnik launched? | 1957 |
| What organization was formed in America in response to this launch? | NASA |
| Why is the Sun's effect on the tides less than the moon's effect? | Because the Sun is so far away from Earth |
| What causes the Earth to revolve around the sun? | the sun's gravitational pull |
| What effect does the tilt of Earth's rotational axis have on Earth? | The 4 Seasons |
| When the northern and southern hemisphere are tilted toward the sun, what season is it? | SUMMER!!! |
| Explain the amount of Sunlight the Earth receives during the March Equinox? | The days are longer and there is more solar energy |
| What is the difference in terms of amount of sunlight with the fall equinox and the spring equinox? | Fall: less and less light, shorter days Spring: more and more light |
| The moon is how much smaller than Earth? | 1/6 |
| What is the most widely accepted idea for for the moon's formation? | The Giant Impact hypothesis |
| What produces the moon's revolution around the Earth? | The Earth's gravitational pull |
| Explain why we see a full moon. | We see a full moon because more and more of the near side becomes lit, during the 2nd week. |
| Explain why we see a new moon. | We see a new moon because less and less of the near side is lit during the 4th week. It is completely dark. |
| What 2 things does gravity depend on? | Mass and Distance |
| When you increase distance what happens to gravity? | gravity decreases |
| When you increase mass what happens to gravity? | gravity increases |
| Which property of the Sun most affects the strength of gravitational attraction between Sun and Earth? | Mass |
| Which would be different if Earth rotates from east to west but at the same rate? | The direction of the Sun's apparent motion across the sky |
| Which best explains why Earth is colder at the poles than ot the equator? | Earth's rotation axis is tilted |
| How are the revolutions of the moon and earth alike? | Both are produced by gravity |
| Why is the same side of the Moon always visible from Earth? | The moon makes exactly one rotation for each revolution around the earth |
| About how often do spring tides occur? | twice each month |
Created by:
SSSullivan
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