No. Gravity is responsible for all 'orbits'. If there were no other body attracting it,
the orbiting object would sail off in a straight line.
No. They orbit Earth; and the reason they orbit is because of gravity.
gravity
Gravity
yes
no, the moon is the Earths natural satellite, the moon is in orbit around the Earth. The whole Earth/Moon system is then in orbit around the sun.
gravity
Same way Luna (the moon) orbits Earth; gravity.
Friction has 100% nothing to do this the Earths orbit, its gravity and inertia.
Gravity affects a satellite launch by pulling the satellite towards the Earth during its initial phase of ascent. This requires the rocket to generate enough thrust to overcome gravity in order to reach the desired orbit. Once the satellite is in orbit, gravity continues to affect its trajectory, helping to keep it in orbit around the Earth.
the earths gravitational pull keeps the moon in orbit
satellites are things that orbit other things in space, for example the moon orbits the earth and is therefore the earth's satellite
Satellite orbit the Earth at different altitudes. A good overview of Low Earth Orbit, Medium Earth Orbit and Geostationary Orbit can be found here: http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx