What is meant by "on or near the surface of the earth", in the gravitation chapter?
On or near the earth’s surface means, either the object is on the ground or it is at a height which is very less compared to the radius of the earth.
What is meant by gravitational force (or force of gravity )? Give its one example.
Gravitational force on the surface of moon is only 1/6 as strong as gravitational force on earth what is the weight in newton of a 120 kg object on the moon and on the earth