Four Fundamental Forces
Gravity- Defined by Einsteins theory of relativity, it says that gravity has an level of attraction based on the mass of the object that reaches over the whole universe. It warps time and space and travels at the speed of light.
Electromagnetic- Acts on particles based on particle charges. A combination of magnetism and electrical forces. They can either attract or repel.
Strong nuclear- This forces the force that holds the particles of atoms together and is the strongest known force.
Weak nuclear- This force deals with the decay of atoms and is responsible for radioactive materials as well as radiation