Question

what is gravity and what is motion?​

Answer 1

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• motion is the change in position of an object with respect to its surroundings in a given interval of time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, and speed. An object's motion cannot change unless it is acted upon by a force
• gravity is the force that attracts all object to each other

Answer 2

Gravity or gravitational forces are forces of attraction. ... That pull is gravity at work. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects.

The acceleration due to gravity experienced by any object that is falling freely close to the Earth's surface is a constant. It has the same value, irrespective of the mass of the object.