Gravitation Tes...

Planets rotate around the Sun in a path best described as 

At what height, the value of '$$ g $$' is half that on the surface of the earth of radius $$R$$?

The difference in $$PE$$ of an object of mass $$10kg$$ when it is taken from a height of $$6400km$$ to $$12800km$$ from the surface of the earth is

The kinetic energy needed to project a body of mass $$m$$ from earth's surface $$($$ radius $$R$$  $$)$$ to infinity is

The factor(s) affecting the value of 'g' is(are):

A spring balance is on sea level. If a body is weighed with this balance at consecutively increasing heights from earth's surface, the weight indicated by the balance:

The minimum velocity of projection to go out from the earth's gravitational pull is called

A satellite is orbiting around the earth. Then, the plane of the orbit:

An object is weighted in the following places using a spring balance. In which place will it weight the heaviest?

At what height in km over the earth's pole, the free fall acceleration decreases by one percent? (Assume the radius of the earth to be 6400 km).