What is Fall (motion)?
A '''fall''' is, in everyday language and thought, a [[movement]] down that happens due to [[gravity]]. An example is when something rolls off a table and falls down to the floor. == Scientific and universal definition == Falling is a motion towards a place where an object will have a lower total [[potential energy]] or lower [[Electric potential|potential]]. Total potential energy being the sum of all potential energies -- those from [[Gravitational field|gravitational fields]], [[Electric field|electric fields]], and [[Magnetic field|magnetic fields]]. The idea of falling in natural human language(s) as falling down begs the definition of what down really is. Down may be straight towards your feet, or if you are on a hill, be off at an angle. Often an attempt is made to correct this definition by saying down is towards the center of the [[Earth]]. But that definition only works here on [[Earth]]. The idea of falling using common everyday language as being in the direction of down does not work in places in the universe other than Earth. In space, somewhere between the [[Earth]] and [[Moon|its moon]], an object may fall to the earth or fall to the moon. At other places an object may fall towards the [[Sun]] or [[Jupiter]]. At other places in the universe an object may even fall to a point in space between stars and planets. Falling using common everyday language is also true only due to gravity. A balloon rubbed on your hair and held close to the ceiling will fall up towards the ceiling. Electrically charged objects do not always fall due to the force of gravity, but due to electric forces. As masses fall in gravitational fields, charges or charged objects will fall to a place where they have less total potential energy. Magnetic objects will fall in a magnetic field to a place where they have less total potential energy. ==Falling people== Falling is a very common cause of people's [[injury|injuries]], possibly the most common cause. This is especially the case for elderly people, people with various cond