DEFINE:- GRAVITY
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Gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects.
The force of attraction applied by earth is called its gravity.
The earth attracts (or pulls) all the objects towards its center. The force with which it pulls objects towards itself is called gravitational force of earth or gravity.
Example :A stone dropped from a height falls towards earth .
As, the earth exerts a force of attraction (called gravity) on the stone and pulls it downward direction.
It is denoted as g.
This is called the gravity.