what is natural satellite of the earth

Name the natural satellite of the Earth.

How many natural satellites does the earth have?

What are the conditions under which a rocket, fired from the earth, launches an artificial satellite of the earth?

Name one natural and one artifical satellite of the Earth .

State two difference between the artifical satellite of the Earth and its natural satellite Moon.

A person in an artificial satellite of Earth feels weightlessness. But a person on the Moon has weight though the Moon is also a satellite of the Earth. Why?

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of esacpe velocity from the earth the height of the satellite satellite above the earth surface will be