Which interaction of nature is weakest

Thus, the quarks inside of the protons and neutrons are bound together by the exchange of the strong nuclear force. Note: While they are close together the quarks experience little force, but as they separate the force between them grows rapidly, pulling them back together. To separate two quarks completely would require far more energy than any possible particle accelerator could provide. There is speculation, that In the very early Universe when temperatures were very high the Planck Scale all four forces were unified into a single force.

Then, as the temperature dropped, gravitation separated first and then the other 3 forces separated. Even then, the weak, electromagnetic, and strong forces were unified into a single force. When the temperature dropped these forces got separated from each other, with the strong force separating first and then at a still lower temperature the electromagnetic and weak forces separating to leave us with the 4 distinct forces that we see in our present Universe.

The process of the forces separating from each other is called spontaneous symmetry breaking. Qn: The known forces of nature can be divided into four classes, viz, gravity, electromagnetism, weak nuclear force and strong nuclear force. With reference to them, which one of the following statement is not correct? Alex Andrews George is a mentor, author, and entrepreneur. He is the author of many best-seller books like 'Important Judgments that transformed India' and 'Important Acts that transformed India'.

He contradicts himself. In the four types of forces I did not find hydrodynamic forces, from waterfalls for example, so I think that this one is missing in the four types of natural forces.

The question is: is this type of force derived or associated with one of the four types described in this classification? The reason they call gravity a strong force because depending on circumstances gravity can overcome every forces black hole is a good example.

The range of gravity is infinite so it results in simultaneous iteration among each bounded particles. On the other hand strong nuclear forces can interact with their neighbors only resulting into weaker overall effect. Then you may say that electromagnetic forces should also dominate since it has infinite range. But, unlike gravity which is attractive only. The rate at which the forces die off is different for each force. The strong and weak nuclear forces are very short ranged, meaning that outside of the tiny nuclei of atoms, these forces quickly drop to zero.

The tiny size of the nuclei of atoms is a direct result of the extreme short range of the nuclear forces. Two particles that are nanometers apart are far too distant from each other to exert an appreciable nuclear force on each other. If the nuclear forces are so weak for two particles only nanometers apart, it should be obvious that the nuclear forces are even more negligible on astronomical scales.

For instance, the earth and sun are far too distant from each other billions of meters for their nuclear forces to reach each other. If both electromagnetism and gravity have effectively infinite range, why is the earth held in orbit around the sun by gravity and not by the electromagnetic force? The reason is that there is no such thing as negative mass, but there is such thing as negative electric charge.

If you place a single positive electric charge near a single negative electric charge, and then measure their combined force on another, distant charge, you find that the negative charge tends to cancel out the positive charge somewhat. Such an object is called an electric dipole. Similarly, if you take two positive electric charges and two negative charges and place them close together properly, you have created an electric quadrupole.

As you add more and more positive charges to an equal number of negative charges, the range of the electromagnetic force of the system gets shorter and shorter. The interesting thing is that most objects are made out of atoms, and most atoms have an equal number of positive and negative electric charges.

Therefore, despite the fact that the raw electromagnetic force of a single charge has an infinite range, the effective range of the electromagnetic force for typical objects such as stars and planets is much shorter. The electromagnetic force acts on charged particles and is the key interaction in anything to do with electricity.

Because most matter has a balance of charged particles, large objects tend to be neutral and the force has no effect on them. When objects become charged, such as in electric motors, in batteries or with static electricity, like charges repel and unlike charges attract. Electrons are the negative-charge carriers and are attracted to protons, which have a positive charge.

When charges move, they create magnetic fields that have north and south poles. As with charges, two like poles repel and different poles attract. The electromagnetic force is just under one hundredth the strength of the strong nuclear force, but it can act at a distance.

While it gets weaker when the charged objects are further apart, the attraction and repulsion theoretically continue to infinity. However, at great distances the effects are tiny and can be negligible. While the strong nuclear force acts only on particles in the nucleus, the weak nuclear force acts on many elementary particles and is responsible for natural radiation.

It governs the way elements break down naturally over time, and when the atoms are no longer held together, particles such as electrons are expelled in the form of radiation. As a result, the weak nuclear force influences how nuclear fission and nuclear fusion take place. The weak force is less than one millionth as strong as the strong nuclear force, and it acts at only very short distances. While it can attract and repel particles, its operating range is so limited that it doesn't really act like the other forces, which pull or push over a distance.

The weak nuclear force is more like a glue or grease, active only in a thin layer between elementary particles. Gravity acts as an attractive force between any two objects that have mass.

The force of gravity depends on the mass of the objects. In everyday life, the force of gravity between the earth and objects such as a car is the weight of the car. The force of gravity is directly proportional to the mass of the objects. For example, 2 quarts of milk weigh twice as much as 1 quart. Gravity is the weakest force and is less than one millionth of a millionth the strength of the strong nuclear force.