The Four Fundamental Forces of Physics by Heartsound Audio

 


The four fundamental forces, or interactions of physics are the ways the individual particles interact with one another. Every single interaction in the universe can be explained by the small handful of interactions.

Gravity:

Of all the fundamental interactions, gravity has the farthest reach, but its actual magnitude is quite weak. 100% attractive force, which reaches through the empty void of space to draw two masses towards one another. 

Gravitation is best described under the theory of general relativity. It is the curvature of space and time around an object of mass. That curve creates an environment, such that the path of least energy is towards another object of mass.

Electromagnetism:

Electromagnetism is the interaction of particles with an electrical charge. Charged particles at rest interact through electrostatic forces. In motion, they interact through both electrical and magnetic forces. In 1864 James Clark Maxwell joined both electrical and magnetic forces and in the 1940s Quantum electrodynamics joined electromagnetism with quantum physics. 

Electromagnetism is considered the most prevalent force in our modern world. It can affect interactions at a distance with a fair amount of force.

Weak Interaction:

Weak interaction is actually a very powerful force. It acts on the scale of the atomic nucleus. It has been joined with electromagnetism as a single interaction referred to as an “electroweak interaction”. The weak interaction is mediated by the W boson (two types W+ and W- bosons) and also the Z boson.

Strong Interaction:

The strongest of the forces is indeed called the strong interaction. It does many things, but keeps nucleons (Protons and neutrons) Bound together, and allows particles called gluons To bind together quarks to make the nucleons in the first place. Gluons can also react with other gluons. This results in strong interactions at an infinite distance, although its major manifestations are at the subatomic level. 

Many physicists  believe that just as electricity, magnetism and the weak force were unified  into the electroweak interaction, there is an underlying or unified force to combine all of these fundamental forces yet undiscovered!  


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