There are four fundamental forces in nature, ordered by their strength from strongest to weakest:
1.
**Strong Nuclear Force:** This is the strongest of the four fundamental forces.
It acts between quarks and gluons, and its residual effect binds protons and neutrons together in the atomic nucleus.
It has a very short range, typically around \( 10^{-15} \) meters (about the size of a nucleon).
2.
**Electromagnetic Force:** This force acts between electrically charged particles.
It is responsible for chemical bonding, light, and all electromagnetic phenomena.
Its range is theoretically infinite, but its effects are often diminished over macroscopic distances due to the cancellation of opposite charges.
The Coulomb force is the electrostatic part of the electromagnetic force.
3.
**Weak Nuclear Force:** This force is responsible for certain types of radioactive decay, such as beta decay.
It is much weaker than the strong and electromagnetic forces and has a very short range, even shorter than the strong nuclear force (around \( 10^{-18} \) meters).
4.
**Gravitational Force:** This is the weakest of the four fundamental forces.
It acts between any two objects with mass.
Although it is very weak, its range is infinite, and it is always attractive.
It is the dominant force on large scales, such as between planets, stars, and galaxies.
Frictional force is not a fundamental force; it arises from the electromagnetic forces between the surfaces in contact.
Comparing the strengths of the fundamental forces, the strong nuclear force is by far the strongest.