If all molecules move in a container at the speed of light c and are isotropic, the above conclusion

Objects have three statesSolid, liquid, hand-branch, gaseous

The molecular motion of any substance in any state is similar (it is constantly moving irregularly), but the degree of freedom of movement is different.

The intermolecular forces of solids are strongSolid molecules only vibrate around a certain position and are difficult to compress.

2. Usually the distance between liquid molecules is smaller than that of gas and larger than that of solids. The force between liquid molecules is smaller than that of solids, and the molecules do not have a fixed position, and their movement is relatively free; It makes the liquid difficult to compress, has no definite state, and has fluidity. Reputation.

3. The distance between gas molecules is very far, and there is almost no force between each other, so the movement of gas molecules is chaotic and irregular, and it is easy to be compressed.

Compressed air refrigeration dryer.

Physical quantity unit formula.

Name Symbol Name Symbol.

Mass m kg kg m = pv

Temperature t degrees Celsius °C

Velocity v m s v=s t

Density p kg m m p = m v force (gravity) f Newton (N) n g=mg

Pressure p Pascal (Pa) Pa Pa P=f S

Work w joules (joules) j w=fs

Power p Watts (Watts) w p=w t

Current i amps (amps) a i = u r

Voltage U volts (volts) v u=IR

Resistance r ohm (ohm) r=u i

Electric work w joules (coul) j w=uit

Electrical power p Watts (Watts) w p=w t=ui heat q joules (joules) j q = cm (t-t°) specific heat c joules (kg °c) j (kg °c) speed of light in vacuum 3 108 m s.

g Newton kg.

The speed of sound in air at 15°C is 340 m s.

The safety voltage is not higher than 36 volts.

You can buy a general review reference book to take a look, it has a summary on it, and it is more detailed.

Read more books, and then connect them to reality, and you can easily string them together. Think about it in your head every day and imagine why.

The formula for wave velocity v= f

Wavelength f-frequency.

The velocity of light in a vacuum c=3x10 8m s c= light is injected into the medium from a vacuum with the same frequency and decreasing wavelength.

The velocity of light in the medium v=c n wavelength = 0 n

The formula for the relationship between "speed of wave" and "speed of light":

Wave velocity formula: v= f( wavelength, frequencies).

The velocity of light in a vacuum c=3x10 8m s ,c= .

Light is injected into the medium from a vacuum, the frequency does not change, and the wavelength decreases.

The velocity of light in the medium v=c n wavelength = 0 n

The distance that a waveform travels per unit of time is called the wave velocity. Usually expressed in c, the SI unit is the meter second. It has different meanings depending on the characteristics of the wave.

The distance that a waveform travels per unit of time is called the wave velocity. It is usually expressed in c in meters and seconds. Generally speaking, the stronger the wind, the longer the wind duration and the farther the wind blows, the greater the speed of the waves formed.

In isotropic coal, the period and frequency of the wave depend on the wave source and are independent of the coal quality. The wave velocity depends on the nature of the coal and is independent of the wave source. Both transverse and longitudinal waves can propagate in solids. Only longitudinal waves can propagate in liquids and gases.

The speed of light refers to the speed at which light waves or electromagnetic waves travel in a vacuum or medium. The speed of light in a vacuum is the maximum speed of motion of an object in nature that has been discovered so far. It is independent of the speed of the observer relative to the light source, i.e. the speed of light measured in the inertial frame relative to the stationary and moving light source is the same.

The mass of the object will increase with the increase in velocity, and when the speed of the object is close to the speed of light, its mass will tend to infinity, so it is impossible for an object with mass to reach the speed of light. Only photons with zero rest mass are always moving at the speed of light. The speed of light is superimposed on any speed, and the result is still the speed of light.

The synthesis of velocity does not follow the laws of classical mechanics, but follows the relativistic laws of velocity synthesis.

The speed of light velocity of light in a vacuum is the maximum speed at which an object in nature can move. The speed of light is independent of the speed at which the observer is moving relative to the light source. The mass of the object will increase with the velocity, and when the velocity of the object approaches the speed of light, its moving mass will tend to infinity, so it is impossible for an object with a mass of non-0 to reach the speed of light.

Only photons with zero static mass are always moving at the speed of light. The speed of light is superimposed on any speed, and the result is still the speed of light. The speed of light in a vacuum is an important physical constant.

The speed of light is defined as c=299792458m s=.

The speed of light remains the same, at 300,000 kilometers per second.

Speed of light = wavelength frequency.

How to understand the theory of relativity, what do people see when moving at the speed of light?