Question: What is force of gravity?

Marta Maia answered on 11 Jul 2017:

Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull. The more massive an object is, the stronger its gravitational pull is. Earth’s gravity is what keeps you on the ground and what causes objects to fall. It’s like the Earth is pulling you and keeping you on the ground. That pull is called gravitational force. Every object in the universe that has mass exerts a gravitational force, on every other mass. The size of the pull depends on the masses of the objects.