Field and matter. Field: In physics, the so-called "field" is one of the basic forms of matter, and the main feature of this form is that its mass and energy are diffuse in space. There are many kinds of fields, such as gravitational fields, electromagnetic fields, thermal fields, and many more.
Matter: In physics, the so-called "matter" is also one of the basic forms of matter, and the substance composed of elementary particles with resting mass is called "matter", and in order to distinguish it from "field", it is also called "condensed matter physics" matter. These are the things that can be directly felt around us.
According to the viewpoint of modern physics, the basic forms of matter can be divided into two types, namely field and matter. The field itself is a form of matter, so there is no need for anything to be transferred between them with the help of other matter.
Analogy: If someone has rivers and lakes, people are rivers and lakes, and rivers and lakes are people.
Potential and energy. Potential: Refers to the relative position of a unit of mass in a conserved field. Whereas, a particle refers to an abstract concept that does not consider concrete matter and only represents its physical properties, somewhat similar to "points" in mathematics. For example, when studying the electric field, the electron is a particle, and when studying the cosmic field, the earth is a particle.
Energy: It is a physical quantity that describes the state of material energy, and it is a measure of material energy. It exists in many different forms like motion, mass, electromagnetism, heat, and many more.
Potential and energy, in a field, the difference in relative position will produce a relative "potential difference", and the relative position of the substance itself is the manifestation of energy, which is generally referred to as "potential energy", and the relative potential difference produces relative potential energy. But in different fields, they are defined as kinetic energy, electrical energy, thermal energy, and so on.
Analogy: If there are rivers and lakes, there will be seats, and if there are seats, there will be high and low.
Waves and forces. Wave: The motion form formed by the vibration of physical quantities when propagating point by point in space is called "wave", and the direction of vibration and propagation are the same as longitudinal wavesThe direction of vibration and propagation are perpendicular to transverse waves, which can be thought of as ocean waves.
Force: The interaction between objects is called "force". When an object is affected by other objects, its momentum or shape changes to a certain extent, and at this time, we usually call its action "force".
Wave and force, there will be changes if there is a potential difference, and there will be transformation if there is potential energy. The propagation of waves is always accompanied by the transmission of energy, and the same goes for forces. This conversion of energy is a wave from the point of view of the field and a force from the point of view of matter. Waves include mechanical waves, electromagnetic waves, gravitational waves, material waves, etc., and correspondingly, forces include mechanical forces, electromagnetic forces, gravitational forces, nuclear forces, and so on.
Analogy: The level of the rivers and lakes will derive the power of the rivers and lakes, and the exercise of the power of the rivers and lakes will derive the rivers and lakes as a school.
By the way, the definition of power in the sense of modern organizational behavior refers to the ability to interfere with other people's actions that they would not normally do by owning and controlling resources that others do not have but desire to have.
Power and rate. Work: It is a physical quantity that describes the process of changing the state of an object, and it is a measure of energy change. To put it simply, under the action of force, the object passes a certain distance in the direction of the force, then this force does work on the object, broadly speaking, all energy conversion is work, so work can also be defined as a measure of energy conversion.
Rate: refers to the amount of work done by an object per unit of time, that is, power is a physical quantity that describes the speed of work done.
At present, we have roughly collected all the basic and derived physical quantities and determined their basic units of measurement. To put it simply, the basic physical quantities are selected by people according to their needs, and there are currently seven of them, namely: length, mass, time, current, temperature, luminous intensity, mass of matter, etc., and the derived physical quantities are composed of basic physical quantities according to the definition of physical quantities, that is, by applying the seven fundamental physical quantities, we can derive all the physical quantities in the current physics.
For example, length and time combine to form velocity, velocity and time again combine to form acceleration, and acceleration and mass combine to form force. For another example, the work done by 1 Newton's force to move the point of application by 1 meter in the direction of the force is 1 joule, and the force and heat form a cross-border;The work of making 1 joule per second is 1 watt, and heat and electricity form a crossover;Watt can also calculate horsepower, and it seems that he has completed the crossover return from electricity to power.
At this point, when it comes to the work and rate, we seem to have completed all the basic frameworks in the category of "studying physics", while the following categories of "exploring physics", such as the origin of the universe, elementary particles, etc., seem to be a bit detached from nature and closer to philosophy or theology.
Analogy: After all, the rivers and lakes are inseparable from the fireworks in the world, and there may really be some heaven and earth.
Brick moving experience. The ancient sage: "Everything has its own reason!".”。Zhao Benshan spoke: "How much is too much, what more bicycle?"”
That's it!