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What kinds of forces are there in the universe?

I'm asking about physical forces only.

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Question ajoutée par Fawzi Abusalma , Physics Tutor , Independent Teacher
Date de publication: 2014/05/14
jerome kaypee
par jerome kaypee , High School Teacher , Calcutta International School

Strong forces

weak forces

electromagnetic forces

gravitational forces

strong forces hold quarks together, weak forces hold nucleons together, electromagnetic hold atoms together and gravitational forces hold solar systems and galaxies together.

Actually in the standard model there are 4 forces: electromagnetic, weak, strong and gravitational. the electroweak theory which unified successfully electromagnetic and weak forces, inspired many theoretical physicists to believe that all fores are one force at certain scale. Hence, the appearance of Grand Unified Theory which unify electroweak and strong forces (QCD), and other unification theories like SuperSymmetry, Grand Unified Theory, String theory...etc.

Bessam Meghdouri
par Bessam Meghdouri , Reservoir Engineer Trainee , SONATRACH

Magnetic force

Electrical force

Nuclear force

Gravitational force

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