‘What is the work done by earth's gravitational force in keeping the moon in its orbit?

An artificial satellite is at a height of 36,500 km above earth's surface. What is the work done by earth’s gravitational force in keeping it in its orbit?

what is gravitational force ?

What is work done?

A rain drop of radius 2 mm falls from a height of 500 m above the ground. It falls with decreasing acceleration (due to viscous resistance of the air) until at half its original height, it attains its maximum (terminal) speed, and moves with uniform speed thereafter. What is the work done by the gravitational force on the drop in the first and second half of its journey? What is the work done by the resistive force in the entire journey if its speed on reaching the ground is 10 m s-^1 ?

A mass of 10 kg is a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer.

What do we call the gravitational force between the earth and an object?

what is the range of gravitational force ?

What is the work done by the tension of the string in a simple pendulum?

What is the work done by the force of gravity on a satellite moving round the earth? Justify your answer.

What is the work done when the force on the object is zero?