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m&m 2.3
Exploring Space
| Question | Answer |
|---|---|
| Apogee | The highest point of the elliptical orbit of a satellite |
| Perigee | The lowest point of the elliptical orbit of a satellite |
| Escape velocity | The speed necessary to make an escape from the earth's gravity. About 25,000 mph |
| Geostationary orbits | Orbit of the satellites stationed directly above the equator. Follows the direction of the earth's rotation |
| Polar orbit | Orbit of the satellites that travel perpendicular to the equator, passing over the polar regions as they circle the earth |
| Astronomical satellites | Satellites used to observe space |
| Communications satellites | Satellites used to broadcast various signals such as TV signals and telephone signals |
| Weather satellites | Satellites that provide forecasters with photos of the cloud patterns that cover the globe, allowing them to study the weather around the world |
| Rescue satellites | Satellites used to pinpoint distress signals |
| Navigational satellites | An orbiting radio beacon that constantly transmits info about airplanes and boats position |
| Earth resources satellites | Satellites used for making maps forecasting crop productions, spotting forest fires, and surveying cities or the damage wrought by storms |
Created by:
Jer Stephens
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