Sunil Batra Solutions for Chapter: Gravitation, Exercise 2: Formative Assessment

A force is required for moving a body in a uniform circular motion. This force is called _____ force? (Centripetal / Centrifugal)

What is the acceleration of a body due to the attraction of earth known as? (Gravitational attraction/ Acceleration due to gravity)

A body is dropped from a certain height. For the activity of free fall of the body to the surface of earth, what is the initial velocity?

_____$\times {10}^{-11} {\mathrm{Nm}}^2{\mathrm{kg}}^{-2}$ is the value of universal gravitational constant.

Which device is used to measure the mass of a body? (Spring balance/Pan balance)

If $\mathrm{g}$ is the acceleration due to gravity on earth, during a free fall towards moon the acceleration of a body is equal to _____.

(Choose from the following: $6\mathrm{g}, \raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{$6$}\right., \raisebox{1ex}{$6$}\!\left/ \!\raisebox{-1ex}{$\mathrm{g}$}\right.$)

Weight is measured by _____ balance.

The weight of a body at the centre of earth is _____.