Find a large number of physical theorems. Be defined

Acun is good Top! But ohm law is i=e r+r to supplement this one.

The famous 17 theorems of physics are:

Junior high school physics has Newton's first law, the law of reflection of light, the law of refraction of light, the law of conservation of energy, the law of electric current, Ohm's law and other laws, the specific analysis is as follows:

Newton's first law, also known as the law of inertia, states that all objects always remain at rest or in a uniform linear motion when they are not affected by external forces; The law of reflection of light: one side, two sides, three equal sizes.

The angle between the incident ray and the normal is the angle of incidence. The angle between the reflected ray and the normal is the reflection angle; The law of refraction of light: one side, two sides, three with the big and four empty;

The law of conservation of energy: energy is neither created nor disappeared out of thin air, it only transforms from one form to another, or from one object to another, while the total amount of energy remains the same; Current law: quantity q, voltage u, resistance r; The formula for Ohm's law:

i=u/r，u=ir，r=u/i；

Therefore, it can be seen that junior high school physics has Newton's first law, the law of reflection of light, the law of refraction of light, the law of conservation of energy, the law of electric current, Ohm's law and other laws.

The laws of physics derived from the principle of symmetry

Many fundamental laws of physics are the result of various symmetry mathematics of time, space, or other properties of nature. In particular, some of Newton's conservation laws are related to some symmetry; For example, the conservation of energy is the result of the symmetry of the movement of time (the same at any moment in time), while the conservation of momentum is the result of the symmetry (uniformity) of space (there is no special point in space).

The indistinguishability of all particles of various elementary types (e.g., electrons, or photons) leads to Dirac and Bose quantum statistics, which leads to the Pauli incompatibility principle of fermions. The rotational symmetry of the coordinate axes between time and space (taking one as the imaginary axis and the other as the real axis) leads to the Lorentz transformation. And then the special theory of relativity is derived.

The symmetry between the inertial mass and the gravitational mass derives the general theory of relativity.

Greedy for more, ignorant and fearless. It's good to have a scope, for example, at the high school level, or even at the college level, but the whole physics world is different from person to person. For the ignorant, any physical conclusion is called a theorem, such as the speed of sound.

As for Einstein, there are only four forces in the physics world, so he was not satisfied with the fact that he wanted to turn the four into two or one, but he failed to succeed in his life.

Since you have asked so, I will give you a general answer, and in summary: there are four major mechanics in the physics world: classical mechanics, thermodynamics, electrodynamics, and quantum mechanics.

Classical mechanics is dominated by Newtonian mechanics, thermodynamics is dominated by the four laws, electrodynamics is reduced to Maxwell's equations, and quantum mechanics is mainly studied by micromechanics. In addition to classical mechanics, which is easier to understand, the other mechanics are like heavenly books, and they are enriched by various assumptions, theories, theorems, laws, and formulas behind them, and their mathematical foundations are all based on higher mathematics.

Looking back at your question, it's like a child, the physics world is a bit ignorant about [physics] and [all]. However, ignorance and fearlessness are also one of the factors of a breakthrough, but your problem itself is bound by itself, and all breakthroughs start from breaking through the existing theorems and laws, and the theorems are uncertain.

The 7 basic units of the International System of Units (SI).

1.Length: meters (m).

2.Mass: kilograms or kilograms (kg).

4.Current: Amps, abbreviated as amperes (a).

5.Thermodynamic temperature: Kelvin, abbreviated as open (k).

6.The amount of matter: mole, abbreviated as mol

7.Luminous intensity: Candela, abbreviated as Candela (cd

The concept is that all other physical quantities can be replaced by these 7 physical quantities, and these 7 physical quantities are the most basic physical quantities, the most primitive physical quantities.

1. Because v = the formula of uniform acceleration motion with zero initial velocity) because time is equal, the velocity ratio = time ratio = 1:2:3:

4：……n2, because x= squared (the displacement formula with zero initial velocity) because the displacement within the first t = s1=at 2 2,

The second intra-t displacement = s2-s1 = 4at 2 2-at 2 2 = 3at 2 2,

The third t = s3-s2 = 9at 2 2-4at 2 2 = 5at 2 2

Displacement in the nth t = sn-sn-1=n 2at 2 2-(n-1)at 2 2=(2n-1)at 2 2

Therefore, the first beat respects the ...... in one t, the second t, and the third tThe ratio of displacements in the nth t is:

sⅰ：sⅱ：sⅲ：…sn＝1:3:5:……2n-13, the uniform acceleration linear motion with zero initial velocity is reduced by a continuous equal displacement and the time ratio is:

Root number 2)-1: Root number 3 - Root number 2: ...Root number n-root number (n-1).

Derivation: s=at1 2....t1^2=s/at...1

s+s=at2^2...t2^2=2s/at...Root number 2

s+s+s=at3^2...t3^2=3s/at...Root number 3

n-1 s=at(n-1) 2....t(n-1)^2=(n-1)s/at...Root number (n-1).

n s = atn 2....tn^2=ns/at...Root number n

T1, T2, T3 above....is the total time.

That is, t2 contains t1, t3 contains t2....

So the next period of displacement so time t2'=t2-t1=(root number2)-1

The same goes for T3'=t3-t2=root3-root2

The same goes for tn'=tn-t(n-1)=root-numbern-root(n-1).

So t1':t2':t3''For:

1:√2-1:√3-√2:..n-√n-1

1.Coincidentally, the velocity ratio in the reed shirt room at the time of the banquet is 1:2:

3：4：……n derivation:

v1=at v2=a*2t...vn=a*nt2.Bit filial piety silver shift ratio in equal time, 1:

n derivation: s1 = 1 2at 2, s2 = 1 2a(2t) 2-1 2at 2=1 2*3at 2....