Four kinds of Force

There are at present four basic forces known to physics. Here is the list of them in order of decreasing strength

a) Strong

b) electromagnetic

c) Weak

d) Gravtitional


Strong Forces	Force which holds neutrons and proton together in atomic nucleus
Electromagnetic Force	Normal force,Tension,Friction,force of impact between colliding balls,chemical forces which bind molecules together. All force which we normally experience in our day to day life is electromagnetic in nature.
Weak Forces	Force found in radioactive decay
Gravitational force	Gravity force of earth and sun

1) Strong forces have extremely short ranged so we do not feel them but they are hundered times more powerful than electrical force

2) Gravitional force are quite weaker then electrical force. We notice them because of huge concentration of mass. The electric force between two electrons is 10⁴² times as large as gravitional attraction