Fundamental Forces Worksheet Gravitational Force Weak Nuclear Force Electromagnetic Force Strong Nuclear Force This force between objects only attracts, and never repels This force between objects can either repel or attract This force between objects can either repel or attract This force between objects can either repel or attract This force can act on objects infinitely far away This force only acts on objects within 10-18m of each other This force can act on objects infinitely far away This force only acts on objects within 1015 m of each other This is the weakest force, so you don’t really notice it unless at least one of the objects involved is very large This is the second weakest fundamental force This is the second strongest fundamental force This is the strongest fundamental force This force holds our planet to orbit around the sun This force is responsible for interactions between elementary particles This force holds ionic compounds like salt together This force holds neutrons and protons together in the nucleus of an atom Maglev trains rely on this force to propel them forward This force overpowers the repelling electromagnetic force to keep protons together This force holds our entire Milky Way galaxy together