For objects to float, the upward forces must be equal to the downward gravity force.
Air or water pressure
The outward force caused by contained water or air.
The force between two surfaces that work against motion.
The force between air and a surface that works against.
The force perpendicular to an object's surface that results in support.
A force caused by a string or rope resulting in stretching or pulling.
2 like charges repel, 2 opposite charges attract.
Whenever you apply a force to push a object pull a object or grip a object.
The force that attracts a body toward the center of the earth, or toward any other physical body having mass.