Force F = ……

For a freely falling body, a = ………

A body has constant speed while rotating in a circular path. Its direction of velocity

What will happen if the distance of a body from the centre of the earth increases ?

If there is an attraction force between all objects why do a man not feel himself gravitating towards massive building ?

An apple falls because of the gravitational attraction of earth. The gravitational attraction of apple on the earth is ……… to gravitational force of attraction of earth on the apple.

The direction of “g” is …………

If there is no gravity your weight becomes

When do you feel weightlessness ?

If a paper and a book are dropped from same height at a time, they will reach the ground at same time

The gravitational force of attraction between two bodies is $F_{1}F\_1$ . If the mass of each body is doubled and the distance between them is halved then the gravitational force between them is $F_{2}F\_2$ . Then

Weight of a body on the surface of the earth is W. Then weight of the same body on the surface of a planet whose mass is double that of the earth and radius thrice that of the earth is

Take an electric motor and fix a disc to the shaft of the electric motor. Place a small wooden block and switch on the motor. Wooden block speed is constant. The path of the wooden block is

The apparatus to measure weight of a body is

The time period of a satellite (T) moving around the earth surface depends on