Flashcards
Satellites and planets
Cards in this deck (9)
- 1what is a geostationary satelliteit is placed in orbit above the equator and takes exactly 24 hours for an orbit, same time it takes earth to rotate once on its axis, this means it stays on the same point over the earth.
- 2why are geostationary satellites ideal for communicationsthey are ideal for communications as they provide a constant link.
- 3Planets closer to the sun have shorter orbit times because...they do not travel as far in one orbit, they travel faster because there is a bigger gravitational pull on them
- 4Artificial satellites in low orbit have...short orbit times, gravity makes them accelerate towards earth but because it moves at a tangent and earth is curved it moves at a near circular orbit
- 5comets gravitational and speed decrease as...distance from the sun increases
- 6different orbit paths cause....different speeds
- 7artificial satellites usesgps locate position accurately, military spying, wheather forecast reliable fast, scientific research
- 8What is a satellitea satellite is an object that orbits a larger object in space
- 9why do satellites stay in orbitsatellites stay in orbit because of gravitational attraction between them
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- User has deleted their subject information Flashcards on Satellites and planets, created by Deleted user on 19/03/2017.
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- Deleted user · Mar 2017
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- Mar 19, 2017
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- Created by bo_97 · May 6, 2013
- Copied by Nuttapon Nakarach · Mar 19, 2017
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