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In quantum field theory, energy and momentum are strictly conserved in the reaction, and the energy e is related to the invariant mass (i.e., the static mass) m: e 2 c 2 = p 2 + m c 2, p is the momentum, this relationship is not linear, so the conservation of energy does not necessarily lead to the conservation of mass, for example, the mass of light quarks can be ignored, but the mass of neutrons and protons composed of light quarks is very large, indicating that the interaction between quarks is very strong, the energy of the interaction is very large, and this part of the energy contributes a lot to the mass of nucleons, 90% in the universe The above visible mass of the substance** is this, which is"Quality gains"As for mass loss, when protons and neutrons combine to form a nucleus, the total interaction energy between quarks is reduced, so there is less mass. e=mc*c.
Energy is equal to the mass of the loss multiplied by the square of the speed of light.
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According to the current theory, mass can be converted into energy, and nuclear fission and nuclear fusion are both mass into energy. But this transformation is incomplete and not very efficient. The most efficient is the annihilation of positive and negative particles, which can completely convert mass into energy.
However, according to the current theory and technology, energy cannot be converted into mass, and the only time we know that energy is converted into mass is when the energy of the singularity is transformed into the matter of today's universe when the universe is large.
From a long perspective, energy can be converted into mass.
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Mass is also conserved, and the mass-energy equation says that the potential energy between molecules or atoms (generated by gravity) is released;
But energy is just an invisible physical quantity used to describe the relationship between objects, and mass is real.
A quantity that embodies the physical properties of an object. These are two concepts that should not be confused, and they are not transformed into quality.
energy, rather.
If you have to understand it this way, don't forget about directionality, which may develop in the direction you say when an external action is applied.
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Hehe, I personally think.
Matter is only a manifestation of energy, in fact, there is only energy in the universe, and the form of matter is only a manifestation of energy. Energy can be converted into matter, and matter can naturally be converted into energy, and matter and energy are inherently the same thing. --Northwest Poplar.
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What is the relationship between energy and matter? Is matter equal to energy? Why is the topic, my personal opinion is that all energy is the existence of matter, there are different substances, there will be different energy phenomena of natural existence, without the generation of matter, there will be no energy physical phenomena, and the existence of energy phenomena is a natural phenomenon that depends on the existence of matter.
Therefore, energy is the original property of matter, and matter is the carrier of energy production.
In nature, the existence of matter is diverse, and if there is any form of matter, there will be a corresponding natural existence of different forms of energy. For example, solar energy, light energy, thermal energy, magnetic energy, kinetic energy, permeable energy, cold energy, chemical energy, biological energy, water energy, wind energy, electronic energy, collision energy, sound wave energy, and magnetic wave energy, etc.
The manifestation process of the cyclical movement of matter and the regeneration of stellar energy matter can be realized through the reincarnation method of transforming organic matter into inorganic matter, and then returning from inorganic matter to organic matter.
The survival of life is the only natural means of converting inorganic matter into organic matter in nature, and life is the carrier of regenerative organic energy substances in nature. It can be seen that inorganic matter is non-living matter, but under the specific conditions of the earth, inorganic matter can be transformed into organic matter, that is, active living matter. Therefore, the active life matter is indeed evolved from the inorganic dust particle flow matter, which is the manifestation of the transformation process from inorganic matter to organic matter in nature.
It can be seen that energy is a physical property of the existence of matter, and energy is not equivalent to matter, but energy is manifested in matter. In other words, only the existence of matter can have the existence of physical phenomena of energy, matter is not the same as energy, energy performance must rely on the existence of matter, matter is the attribute of producing energy, is the carrier of energy expression. This is a subordinate relationship, not an independent and separate equal relationship.
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According to Einstein's theory of relativity, matter and energy can be converted into each other, i.e., e=mc2, and energy is equal to: mass times the square of the speed of light. That is, part of the lost mass can be converted into huge energy, thus developing a huge energy nucleus**.
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Energy and matter are related, but matter is not the same as energy. The theory of relativity states that the energy of an object is equal to its rest mass multiplied by the square of the speed of light, that is, energy and matter are unified and are manifestations of the same thing in different states, matter is energy at rest, and energy is matter in motion. But it would not be rigorous enough to say that matter equals energy.
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The relationship between energy and matter is that energy and matter can be converted into each other, and matter is equal to energy in a sense because there is a mass-energy equation.
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1. The most essential thing is energy.
2. The life activities of all living things need energy, and whether the plant photosynthesizes, the rabbit eats the grass, the eagle catches the rabbit, the person catches the eagle, it is ultimately a cycle of energy, but every time a creature is eaten, the next level of the creature can only get 10%-20% of the energy, and the rest will be lost to the universe.
3. For all things that grow on the earth, the ultimate energy ** is our sun. Including the water cycle of the cloud and rain system, light and darkness, the four seasons of cold and heat are inseparable from the sun.
4. Finally, in fact, the sun's energy also comes from its internal nuclear reaction, which is to decompose and polymerize the material particles of the inner core, simply put, to decompose the inner core and convert it into the form of energy release, which is the mass-energy conversion.
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matter, which is limited by the definition of the universe to the range of values at the moment, and gives the instantaneous state of the universe after ignoring the increment of time. The connotation is that matter is the spatial distribution of mass. Extension is all objects, including spiritual objects and physical objects.
An object is the instantaneous distribution of the mass of a finite clan in a finite space.
Energy is a description of the movement of all macroscopic and microscopic matter. Corresponding to different forms of motion, energy is divided into mechanical energy, molecular internal energy, electrical energy, chemical energy, atomic energy, internal energy, etc., also referred to as energy. The word for energy is t
Introduced in 1801 when he was lecturing on natural philosophy at King's College London, Young proposed that the term energy should be used to denote the product of this product, and that it should be related to the work done by the object, in response to the idea that the product of mass and velocity was called vitality or ascending force. However, it has not attracted attention, and people still believe that there are different forces in the auspicious movement of the auspicious movement. It was not until the law of conservation of energy was confirmed that the significance of the concept of energy was recognized.
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A measure of how much the spatial and temporal distribution of mass may change, and is used to express the ability of a physical system to do work. Modern physics has clarified the quantitative relationship between mass and energy, that is, Einstein's mass-energy relation: e=mc2.
The unit of energy is the same as the unit of work and is joules (j) in the International System of Units. In nutrition, in addition to joules (j) as the unit of energy, calories (cal) are sometimes used as the unit of energy, and 1 calorie is approximately equal to joules.
In the fields of atomic physics, nuclear physics, particle physics, etc., electron volts (EV) are also used as the unit of energy, 1 electron volt = , 18 10 19 joules. In the field of theoretical physics, there are also ergs (erg) as the unit of energy, 1 erg = 10 7 joules.
Energy exists in many different forms. According to the classification of different forms of motion of matter, energy can be divided into nuclear energy, mechanical energy, chemical energy, internal energy (thermal energy), electrical energy, radiation energy, light energy, biological energy, etc. These different forms of energy can be converted into each other through physical effects or chemical reactions.
Various fields also possess energy.
In nutrition, energy refers to the chemical energy (biomass energy) contained in food that can be absorbed by the human body, and the energy in food can sometimes be called calories, and the energy consumed by a normal adult per day is about joules (8400 kJ, NRV nutrient reference value).
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Let me tell you what I think.
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