| Force | Relative Strength* | Particles involved | What it does |
| Strong Nuclear Force | 1 | Quarks** | Holds the nuclei of atoms together |
| Electromagnetism | 10-12 | Electrically Charged particles | Holds atoms together, the rules of electricity and magnetism |
| Weak Nuclear Force | 10-14 | Quarks, electrons, neutrinos | Radioactive decay of atoms (breakdown) and the decay of neutrons |
| Gravity | 10-40 | All particles | Holds everything together, controls motion of everything |
* - the relative strength column shows how each force compares to the
Strong Nuclear Force - how many times weaker they are actually.
** - quarks are the building blocks of protons and neutrons