We're doing orbits and such in physics at the moment, and out teacher said "if a geostationary satellite gets further away, it has to go faster". I get this, because with a bigger orbit it would have to move faster to stay above the same point on earth, more distance to travel in the same time. However, seeing as it's above the same point on earth, relative to the earth it isn't moving at all. Same as the satellite with the smaller orbit. What I'm wondering is what do you reference this speed to, to say that it's going faster? Space itself? But I'm sure that would just bring in loads of complications. Thank you.