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| Question | Answer |
| what is a geostationary satellite | it 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. |
| why are geostationary satellites ideal for communications | they are ideal for communications as they provide a constant link. |
| Planets 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 |
| Artificial 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 |
| comets gravitational and speed decrease as... | distance from the sun increases |
| different orbit paths cause.... | different speeds |
| artificial satellites uses | gps locate position accurately, military spying, wheather forecast reliable fast, scientific research |
| What is a satellite | a satellite is an object that orbits a larger object in space |
| why do satellites stay in orbit | satellites stay in orbit because of gravitational attraction between them |
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