Different Types of Forces in Nature

GRAVITATIONAL FORCE : This is the force which is always ATTRACTIVE. It acts between two masses. Each and every object in this universe applies this force on all other objects, This is the weakest force.

. ELECTROMAGNETIC FORCE : When an electric charge is moving, it produces magnetic force besides the electric force. The combined effect of these two forces, is called the electromagnetic force. It is stronger than gravitational force.

WEAK NUCLEAR FORCE : This is the force which is responsible for emission of beta particles from the nucleus. This force is more powerful than the gravitational force but it is weaker than the electromagnetic force.

. STRONG FORCE : This is the strongest force in the nature. It acts on any two nucleons (i.e. proton and neutron) in the nucleus.

There are four basic forces in nature

Gravitation, or gravity, is a natural phenomenon by which all physical bodiesattract each other. It is most commonly recognized and experienced as the agent that gives weight to physical objects and causes physical objects to fall toward the ground when dropped from a height.

It is hypothesized that the gravitational force is mediated by a massless spin-2particle called the graviton.

Gravity is one of the four fundamental forces of nature, along with electromagnetism, and the nuclear strong force and weak force.

Colloquially, gravitation is a force of attraction that acts between and on all physical objects with matter (mass) or energy.

GRAVITATIONAL FORCE

. In modern physics, gravitation is most accurately described by the general theory of relativity proposed by Einstein, which asserts that the phenomenon of gravitation is a consequence of the curvature ofspacetime.

.Newton's laws of motion are also based on the influence of gravity, encompassing three physical laws that lay down the foundations for classical mechanics.

Electromagnetism, or the electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation.

This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically chargedparticles and the interaction of uncharged magnetic force fields with electrical conductors.

The science of electromagnetic phenomena is defined in terms of the electromagnetic force, sometimes called theLorentz force, which includes both electricity and magnetism as elements of one phenomenon.

During the quark epoch, the electroweak force split into the electromagnetic and weak force. The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life.

ELECTROMAGNETIC FORCE

• Ordinary matter takes its form as

a result of intermolecular forces

 between individual molecules in

matter.

•Electrons are bound by

electromagnetic wave mechanics

into orbitals around atomic nuclei

 to formatoms, which are the

building blocks of molecules.

In particle physics, the weak interaction is the mechanism responsible for theweak force or weak nuclear force, one of the four fundamental interactionsof nature, alongside the strong interaction, electromagnetism, and gravitation.

The weak interaction is responsible for both the radioactive decay and nuclear fusion of subatomic particles.

In the Standard Model of particle physics, the weak interaction is caused by the emission or absorption of W and Z bosons. All known fermions interact through the weak interaction.

The force is termed weak because its field strength over a given distance is typically several orders of magnitude less than that of the strong nuclear forceand electromagnetism.

Weak Nuclear Force

During the quark epoch, the electroweak force split into the electromagnetic and weak force. Most fermions will decay by a weak interaction over time. Important examples include beta decay,

and the production of deuterium and

then helium from hydrogen that powers

the sun's thermonuclear process.

Such decay also makes 

radiocarbon dating possible, as 

carbon-14decays through the weak

interaction to nitrogen-14. It can also

create radioluminescence, commonly

used in tritium illumination, and in the

related field of betavoltaics.

In particle physics, the strong interaction is the mechanism responsible for the the strong nuclear force, one of the four fundamental interactions of nature, the others being electromagnetism, the weak interaction and gravitation.

Effective only at a distance of a femtometre, it is 137 times stronger than electromagnetism, a million times stronger than the weak force interaction and many orders of magnitude stronger than gravitation.

It ensures the stability of ordinary matter, in confining the elementary particles quarks into hadrons such as the proton and neutron, the largest components of the mass of ordinary matter.

In the context of binding protons and neutrons together to form atoms, the strong interaction is called the nuclear force.

Nuclear Strong Force 

The strong interaction is thought to be mediated by massless particles called gluons, acting upon quarks, antiquarks, and other gluons.

Just after the Big Bang, when the universe was born, during the electroweak epoch, the electroweak force separated from the strong force.

THE END