there is no effect of gravity on atomic forces because gravity is very very weak than the atomic forces(Gravitational Force = 10-38 Atomic forces, Weak=10-13 Strong=1).
not particularly, essentially the effect of gravity depends on its mass and your distance from it
Gravity affects velocity by changing the acceleration of an object. As an object falls, gravity accelerates it, increasing its velocity. Without gravity, an object would move at a constant velocity.
All objects attract one another (exert an attractive force), due to gravity. The effect of any force, including gravity - if there is no force opposing it - is to accelerate the object (i.e., change its velocity).
Acceleration does not effect gravity. It is rather the other way round. Gravity can affect the rate of acceleration.
They floated in the AIR even though there wasn't any...
It is really the other way round - gravity has an effect on weight. The more gravity, the more weight.
No. An object that has any mass consequently exerts some gravity. However, with relatively small objects, the gravitational force is so small that it does not have any practical effect.
The stars are too far away of Earth's gravity to have any noticeable effect on them.
There are likely places in the universe where there is very little gravity, but it is probably impossible for no gravity to exist somewhere. There is very probably gravitational influence just about everywhere.
Gravity affects everything that has mass.
Gravity will accelerate any object (aka, the ball) towards the center of the earth, (or "down") at 10m/s2.
No.