explain in brief fandmental force in nature
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Answer:
Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.
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Explanation:
What are the Fundamental Forces in Nature?
There are four universal or fundamental forces in nature. Without these forces, all matter in the world will fall apart. Force as such is any pull or push that causes an object to alter its physical state (in terms of motion or deformity). Newton defined a force as anything that causes an object of mass ‘m’ to move with an acceleration ‘a’. Following are the four fundamental forces in nature:
Gravitational force
Electromagnetic force
Strong nuclear force
Weak nuclear Force
A brief overview of the four fundamental forces is given below.
What is Gravitational Force?
Gravitational force is one of the four fundamental forces of nature. It is the weakest of the four. It is also the attractive force which arises from the gravitational interaction.
According to Newton’s law of gravity, it states that the gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.
When considered for massive objects, like the sun, or giant planets, gravitational force is considered to be strong as the masses of these objects are also large. On an atomic level, this force is considered weak.
Gravitational Force Formula
Gravitational force can be represented as follows
Fundamental Forces
where,
Fg is the gravitational force
G is the universal gravitational constant
m1 and m2 are the masses of the objects in consideration
r is the distance between the centres of the two objects in consideration
Gravitational Force of Earth
The gravitational force of the earth is 9.807 m/s2.
Gravitational Force Examples
The revolving of the moon around the earth is due to gravitational attraction between them.
The formation of tides in the ocean is due to the gravitational force acting between the earth and the moon.
Related Articles:
Nuclear Force
Electromagnetic Field
Electromagnetic Force
Did you know that you have never truly ever touched anything in the world? You are matter, and we know that all matter is made up of atoms. Atoms in turn has a dense nucleus, protons, neutron and electrons. And where are these electrons? They occupy the outermost layer of an atom. Now what is the charge on electrons? They have negative charges.
By their nature, all particles are only attracted to particles that have an opposite charge and repel those with like charges.
Say you feel like holding a pen. The pen is a matter made of atoms filled with nuclei, neutrons, protons and electrons spinning around the nucleus as well. By nature, the electrons that you are made of and the electrons that make up your pen will repel each other. So technically, you never truly touch anything!
These are electromagnetic forces. Why does a comb get charged when you continuously brush your hair? Why are the subatomic particles held together? Because… Electromagnetic forces!
These have a long-range and the effect of their forces diminishes over distance due to the shielding effect. However, sub-atomically, they have short-range and are considered strong forces but still weaker than strong nuclear forces.
Strong Nuclear Forces
Out of the four fundamental forces, nuclear forces are the strongest attractive forces. Electromagnetism holds matter together, but there was no explanation on how the nucleus is held together in the atom. If we consider only electromagnetism and gravity, then the nucleus should actually fly off in different directions. But it doesn’t, implying that there exists another force within the nucleus which is stronger than the gravitational force and electromagnetic force. This is where nuclear forces come into play. Strong nuclear forces are responsible for holding the nuclei of atoms together.
Fundamental Forces Same charged protons attract each other due to Nuclear force[/caption]
This is the most dominant force in reactions and is so strong that it binds protons with similar charges with the nucleus. It is mostly attractive in nature but can be repulsive sometimes. It has a very short range of just 1 fm.
Weak Nuclear Forces
Weak force is the force existing between the elementary particles which are responsible for certain processes to take place at a low probability.
Weak Nuclear Force Example
Weak nuclear forces are responsible for the radioactive decay, specifically the beta decay neutrino interactions. It has a very short range (less than 1 fm) and this force is, as the name suggests, weak in nature.
Properties of Weak Force
Following are the properties of weak force:
Weak nuclear force is the only force which does not follow parity-symmetry.
It is the only force that does not follow charge-parity symmetry.
Weak nuclear force is responsible for the change in quark into other forms.
Carrier particles with significant masses are responsible for the propagation of the weak force.
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