On the question of light and fire. 10

Light is a visible wave, also called light wave, which divides into orange, yellow, green, blue, indigo, and violet, and its wavelength is between 390nm and 780nm, which you will learn in high school.

Fire does not belong to the three forms of solid-liquid gas, fire is plasma, which is a visible wave due to the energy (specifically manifested as heat) produced by the combustion of an object.

I'm in my third year of junior high school, and I've never thought about your question, but light can explain that light is made up of photons, which is a substance of the world, and it's a visible electromagnetic wave, and most of our light comes from the sun, and because of the influence of nuclear fusion, light has energy, and fire, like water molecules, photons, are made of one or more particles.

Matter is generally divided into four states: solid, liquid, and gas, and fire belongs to plasma.

Light is a kind of electromagnetic wave, it is different from other substances, it is a field substance, it is a special form of matter, and solids, liquids, gases, plasmas are completely different, because the smallest particles of these four states are atoms, and the smallest particles of field matter are much smaller than atoms, the difference is very large, it is simply a world of difference.

Fire is in a plasma state, and it is formed by the combustion of a substance that emits a large amount of heat and produces high temperatures, which ionize the air.

Light is an electromagnetic wave that can cause vision and is made up of photons that move at high speeds.

What exactly is light? It is a question that deserves to be studied and must be studied. At present, the school of physics has reached another bottleneck, that is, the conflict between relativity theory and quantum theory, and whether the essence of light is a fundamental particle or a wave like sound (if so, in what medium does the wave propagate) has a guiding role for future research.

Difference Between Light and Fire:

1. The definition is different.

Light is a physical term whose essence is a stream of photons in a specific frequency band.

The original meaning of fire refers to the light flame produced when the object is burned, and it is later extended to the meaning of ** or shooting, anger, hot and hot qi in traditional Chinese medicine, heat, red, etc.

2. The form is different.

A light source emits light because the electrons in the light source gain extra energy.

Fire is an intense oxidation reaction that takes place during the combustion of matter, and its energy is released in the form of light and heat, in addition to producing a large number of products.

3. The conditions under which it occurs are different.

Light refers to the fact that the electrons in the light source gain extra energy, causing the original electrons to jump and return to their original orbits, and the energy is released in the form of waves.

According to the law of conservation of mass, fire does not make the atoms of the combustible object disappear, but only transforms the molecular form of the combustible object through chemical reaction.

4. The form is different.

Light has wave-particle duality, which is both a wave and a particle, and its basic form is a light particle, which carries energy.

The visible part of fire, called flame, can take on different shapes as particles vibrate, and can take the form of plasma (fourth state, similar to gas) when the temperature is high enough. Depending on the substance burned and the purity, the color and brightness of the flame will vary.

The fire is usually called a flame, that is, the combustion of flammable gases (wood is heated to produce flammable gases, there is a flame, there is no flame when charcoal is burned, and a large amount of charcoal is burned with a faint flame that is caused by the combustion of carbon monoxide produced by carbon and oxygen), combustion produces high temperature so it glows and light is electromagnetic waves, including visible and invisible.

In Luffy's words: fire can roast meat, light cannot. In the words of ordinary people, fire can emit light, but it depends on a magnifying glass (scientific name convex lens) to make fire.

Fire includes light Light does not include fire.

Fire is a phenomenon. For example, someone said"The house was on fire"Finish. Description"Room"Yes"Burning".This is a phenomenon.

A flame is the volume of gases and vapors that a combustible substance is burning. It is generally made up of flame hearts. Inner Flame.

The outer flame is composed of three parts. There are many factors that affect the composition of the flame. For example, the type of flame.

The fuel-assist ratio of the same type of flame. the burning environment of the flame, etc. For the same type of flame.

According to the change of the combustion assist ratio, it can be divided into rich combustion flame. Stoichiometric flames and lean flames. The so-called stoichiometric flame means that the combustion assist ratio is completely in line with the combustion reaction coefficient ratio of the gas and the auxiliary gas.

This flame has the highest temperature. But the flame itself does not have redox properties. Rich flame refers to the flame of gas in the fuel-assist ratio of gas greater than stoichiometric flame.

The temperature of this flame is slightly lower than that of stoichiometric flames. However, due to the increase in gas, the concentration of carbon atoms in the flame increases. It has a certain reduction in the flame.

It is conducive to the generation of ground state atoms, and the lean flame refers to the flame in which the gas is smaller than the gas in the stoichiometric flame combustion assist ratio. This flame has a lower temperature. and has obvious oxidation.

This kind of flame is mostly used for the determination of ionization elements such as alkali metals. It can also be said that flame is a sign of a chemical change occurring, whereas light is an immaterial product produced in a chemical change.

The fire usually refers to the flame, that is, the combustible gas is produced by combustion (wood is heated to produce flammable gas, there is a flame, there is no flame when charcoal is burned, and a large amount of charcoal is burned with a layer of faint flame that is caused by the combustion of carbon monoxide produced by carbon and oxygen), and the combustion produces high temperature so it glows.

Whereas, light is electromagnetic waves, both visible and invisible.

The flame we see is actually the light we see. For example, when we use candles for small hole imaging experiments, we see a flickering candle light on the screen, so the flame has the same property as light.

Generally speaking, the sunlight we see is very uniform and not much different, but the flame generally has more light in one band than in other bands. For example, if we see that the candle light is yellow, it means that there is more yellow light, which is related to the chemical properties of the combustible.

It means to be annoyed; Rage.

1) Cover Chi Tsai's open fire.

Zizhi Tongjian: The Seven Years of Tang Xuanzong's Junior High School": "Near Huazhou, there are thieves and thieves who rob Xia. Hu Sanxing Note: "Open fire robbers, words and thieves have nothing to fear." See " The Thief of Light ".

2) Dialects. Rage. Annoyed.

Zhou Erfu "Morning in Shanghai" Part 1 Part 9: "Zhang Xuehai was unconvinced, but he couldn't make sense, and he couldn't help but be angry again. ”

2. 光 (guāng).

光 guāng (

1) The sun, fire, electricity, etc., radiate the kind of thing that dazzles people's eyes, makes people feel bright, and can see objects: sunlight. Moonlight. Firelight. Guanghua (bright brilliance).

2) Honor: Presence (honorific, meaning that the guests come to bring glory to the host). Patronize. Recovery.

3) Make it prominent: Bright. Glory to the ancestors.

4) Scenery: Spring is bright.

5) Smooth: Smooth. Smooth. Luster.

Sixth), it's over, there is nothing left: kill and burn it all. Eat it all up.

7) Exposed: bare-chested.

9) Surname. 1. 火 (huǒ).

火 huǒ (

1) Combustion, the light and flame emitted when a substance is burned: firepower. Fire candles. Fire. Flame. Pyrotechnics. Take the chestnut in the fire (metaphorically take risks for others to contribute, and you suffer a loss, and you have nothing to gain).

2) Urgent: Hurry. 100,000 urgent.

3) Finger guns, ammunition, etc.: gunpowder. Artillery.

4) Anger, anger: fiery violence. Fireability.

5) Zhongdan loss refers to inflammation, redness, swelling, irritability, etc.: liver fire. Poisonous fire.

6) Describe red: fiery red. Ham.

7) The ancient army organization, one fire and ten people.

8) Surname.

The essence of the flame is the rapid movement of protons.