[**NCERT In Text**]

Write the formula to find the magnitude of the gravitational force between the earth and an object on the surface of the earth.

Let M_{E }be the mass of the Earth and mbe the mass of an object on its
surface. If R is the radius of the Earth, then according to the universal law of
gravitation, the gravitational force (F) acting between the Earth and the object
is given by the relation:

^{2}.

Mass |
Weight |

Mass is the quantity of matter contained in the body. | Weight is the force of gravity acting on the body. |

It is the measure of inertia of the body. | It is the measure of gravity |

Mass is a constant quantity. | Weight is not a constant quantity. It is different at different places. |

It only has magnitude. | It has magnitude as well as direction. |

Its SI unit is kilogram (kg) | Its SI unit is the same as the SI unit of force, i.e., Newton (N) |