What exactly is energy that people often refer to?

In our social life, there are many things, and many times we know what it is, but when you ask me to describe it in words, it is also difficult, which is what people call "only meaning but not speaking". There are many things in life that are difficult for us to explain with our eyesAs people often say, what exactly is "energy"? This question is too broad, so let's start with some simple aspects.

In my opinion, energy is an inner manifestation of an emotion.

Each of us has energy, and this energy exists in the emotions of each of us, energy is the manifestation of a person's inner emotions, we will often hear this word in our lives, but many people do not know very well, and do not know what the specific content of this word wants to express, in fact, it is very simple to understand the word "energy" very clearly.

Each of us has our own emotions, but many people will show their joys, sorrows, and sorrows obviously, these are our emotions, but some people are easily emotional, it is difficult to control their emotions, so in life we will see some people often drink other people's noisy and noisy, which is a bad performance. This emotion is actually a kind of energy emitted in each of our bodies, and this energy can be controlled through acquired learning.

Finally, this energy is also manifested as an element in the body, the fruits, vegetables and dairy products that we eat every day.

These foods contain a lot of vitamins and nutrients, and eating these things every day can replenish energy for the body, and there is that after we usually exercise too much, due to the fatigue of the body, many people will buy that kind of high-energy drinks to supplement the necessary energy for the body, such as Red Bull.

and pulsations, so energy is both a manifestation of emotions and an aggregated element in our human body.

This energy is the magnetic field. The magnetic field is the only force that creates everything in the world, as long as the magnetic field exists, things will be created, and the type of thing that is created depends on the type of magnetic field.

Energy is an inner manifestation of an emotion, everyone has energy, and energy is a manifestation of a person's inner emotions.

Quantum physics states that the cosmic magnetic field makes up everything in the universe.

Everything in the universe is made up of energy under the action of a magnetic field.

Whether it's a car running on the street, or you, it's all made up of energy.

You, the sun, the moon, and the stars are all made of the same material.

You are a walking, talking, intelligent energy body in the form of a human body.

You are made up of cells, and cells are made up of atoms, and atoms are made up of subatomic particles, and subatomic particles are energy.

Einstein's mass-energy equation tells us that energy and matter can be converted into each other, and the world's particle collider experiments have also proved this, and particles carrying enough energy to collide with each other can produce new particles.

Energy is a measurement of the range of periods of motion of the basic unit of matter in space. Modern physics has clarified the quantitative relationship between mass and energy, that is, Einstein's mass-energy relation: e=mc2.

Energy, which means "activity, operation" in ancient Greek, is an indirectly observed physical quantity, which is regarded as the ability of one physical system to do work on other physical systems. Work is defined as the spatial cumulative effect of the force on the displacement of the object in the direction of the force and is equal to the product of the force and the displacement passing in the direction of the force.

The total energy contained in an object is based on its total mass, and energy, like mass, is neither created nor destroyed out of thin air. Energy is a scalar quantity like mass. In the International System of Units (SI), the unit of energy is joules, but sometimes other units such as kilowatt-hours and kilocalories are used, which are also units of work.

Energy is a uniform measure of the scale of motion of all matter.

Energy is a measure of how much the spatial and temporal distribution of mass is likely to change.

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.

Everything in the world is in constant motion, and among all the attributes of matter, motion is the most basic attribute, and all other attributes are the concrete manifestations of motion. Energy is a measure that characterizes the ability of a physical system to do work.

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 heat.

Energyform

1. Chemical energy.

Chemical energy is the energy released or absorbed when a substance undergoes a chemical change (chemical reaction). For example, the discharge of dry batteries and accumulators is the conversion of chemical energy into electrical energy; Charging a battery converts electrical energy into chemical energy. Its essence is the energy released by the change of electrons in the outer shell of the atom, which leads to the change of electron binding energy.

The annihilation of electrons and negative electrons into photons is the energy of the electrons' static energy converted into photons.

2. Internal energy (thermal energy).

The sum of the kinetic energy of the thermal motion of the atoms and molecules inside the substance and the potential energy between the atoms, the higher the temperature, the greater the internal energy (thermal energy) contained in the substance. The thermal wide liquid machine is the expansion of water vapor, which turns its internal energy (thermal energy) into the kinetic energy of the heat engine.

3. Electric energy. The electric potential energy between the positive and negative charges due to the action of electricity can be expressed by the strength of the electric field. The electrical energy density in a vacuum (electrical energy per unit volume) is the electric field energy density w=e2 2;The electrical energy density in the medium w=e·d 2, where d is the displacement vector and e is the electric field strength.

Energy is a measure of the degree to which the spatial and temporal distribution of mass may change, and is used to represent 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=mc.

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.