Manipur Board Solutions for Chapter: Gravitation, Exercise 1: EXERCISES

 Distinguish between $‘G’$and ‘$g$’.

Starting from Newton’s law of gravitation, show that the value of ‘$g$’ decreases as one goes above the earth’s surface.

We know that the earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force which is greater or smaller or the same as the force with which the moon attracts the earth? Give reason for your answer.

From the universal law of gravitation we have learnt that the moon attracts the earth, why does the earth not move towards the moon?

What will happen to the force between two bodies, if the mass of one of them is doubled?

What will happen to the force between two bodies, if the distance between the bodies is doubled?

What will happen to the force between two bodies, if the masses of both are doubled?

What do you mean by the weight of a body? State its unit.