What is meant by gravitational force (or force of gravity)? Give its one example.

Gravitational force: Any two objects in the universe attract each other and the attraction acting between these two objects is directly proportional to the mass ok of these two objects and inversely proportional to the distance between these two objects.

Example: When we bounce an object towards the sky, then after reaching a particular height, that object comes back to the earth, here the earth uses the force of attraction to pull that object back which is called gravity.