Fundamental Forces of Nature

There are four fundamental forces in nature that governs the entire universe. All the other force can be explained under these force. These interactions include attractive and repulsive forces, decay, and annihilation.

Four Forces of Nature

Strong force: This force acts between hadrons and quarks. It is the strongest force in nature. It is always attractive in nature. It is responsible for the stability of the nucleus.

Electromagnetic force: This force acts between all charged particles. It is also called infinite range force. It is 137 times weaker than strong force. It is attractive as well as repulsive force. It is responsible for the chemical reaction and stability of atoms. Chemical reaction takes place due to the electromagnetic force.

Gravitational force: This force act between the particles having mass. It is always attractive force. It is the weakest force in nature. It is responsible for the stability of the universe.
Various theories have been put forwarded to understand the mediator of this force. Some of the researcher accepts that graviton, a massless and chargeless particle carries gravitational force, but it has not been verified yet.

Note: The concept of anti gravity has been proposed by various researchers. This is opposite of gravity, which would be a repulsive rather than attractive force. Antigravity is supposed to be the main factor for the inflation (expanding) of the universe. This antigravity force, however, is much too small to be measured in the laboratory, so it has no practical implications.

Weak force: Weak force acts between leptons and hadrons. This force is responsible for the radioactive decay. It is 106 times weaker than strong force so this force is not strong enough to hold the nucleus together, hence the nucleus can fall apart.

 

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