Flashcards
Satellites and planets
Flashcards do conjunto (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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- O usuário eliminou as informações de disciplina FlashCards sobre Satellites and planets, criado por Usuário eliminado em 19-03-2017.
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- Criado por bo_97 · 6 mai 2013
- Copiado por Nuttapon Nakarach · 19 mar 2017
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