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Semester II Exam
Terms
| Question | Answer |
|---|---|
| Cloud of dust and gas where stars are born. | Nebula |
| The distance light travels in one year. | Light-year |
| The distance between the Earth and the sun. | Astronomical Unit |
| Spinning on an axis. | Rotation |
| The elliptical path of one body as it orbits another body in space. | Revolution |
| The time it takes Earth to revolve around the sun one time. | Year |
| The time it takes the moon to revolve around the Earth once. | Month |
| The time it takes Earth to rotate once on its axis. | Day |
| The natural rise and fall of water caused by the gravitational pull of the moon and Earth. | Tides |
| An artificial or man-made body that revolves around another body. | Satellite |
| The different appearances of the moon based on its position around the Earth. | Phases |
| The sunlit fraction of the moon is getting larger. | Waxing |
| The sunlit fraction of the moon is getting smaller. | Waning |
| When the sun, Earth, and moon are aligned and the shadow of the Earth falls on the moon. | Lunar Eclipse |
| When the sun, moon, and Earth are aligned and the shadow of the moon falls on the Earth. | Solar Eclipse |
| The shape of the orbit of a comet. | Highly Elliptical |
| Dust,gas, and ice also called a "dirty snowball". | Comet |
| Small rocky bodies in orbit around the sun. | Asteroids |
| Rocky bodies that are smaller than asteroids orbiting the sun. | Meteoroids |
| Bright streak of light caused by a meteoroid burning up in the atmosphere. | Meteor |
| A meteoroid that strikes Earth's surface. | Meteorite |
| A galaxy with a bulge at the center and blue arms. The Milky Way is this type. | Spiral |
| A galaxy with a bright center, oval in shape and very little dust and gas. | Elliptical |
| A galaxy that has no specific shape. | Irregular |
| The youngest stars on the main sequence. | Massive Blue Stars |
| The actual brightness of a star. | Absolute Magnitude |
| How bright a star looks. | Apparent Magnitude |
Created by:
pverschoore
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