Question 1: What is the meaning of mass? 1. The quantity of substances contained in an object is called mass, which is a physical quantity to measure the gravitational potential energy and kinetic energy of an object at the same place. The quality of a product or work, and the improvement of quality (the degree to which a set of inherent characteristics meet the requirements).

2. When developing and producing a product, what level of product quality control is related to the positioning of general statistical descriptors of production and quality data, which is called quality positioning. Quality is the main measure of products, which directly affects the competitiveness of enterprises' products in the market. Therefore, enterprises should determine the quality level of products according to the actual situation of market demand when developing and producing products. In positioning quality, we should also examine the marginal benefits of quality. That is, the marginal input and marginal income of quality should be equal. That is to say, the last dollar spent on quality improvement should receive the same value of income.

3. The general view is that the higher the product quality, the better, the higher the quality and the higher the value, but in fact, this view is not necessarily correct. High-quality products are not necessarily popular in the market. Because high quality means high price. There are many consumers who want to buy products with lower quality but lower price. The quality of Japanese electrical appliances is high, but many people still buy China electrical appliances. Although the quality of domestic electrical appliances is lower than that of Japanese electrical appliances, it is cheap. On the one hand, it is difficult to quantify the quality standards. Even if you pass some quality standards, such as ISO quality series certification, your product quality is higher than other enterprises, but in the market, especially the recognition of consumers does not necessarily conform to these standards, and consumers' understanding of quality often has their own personal factors;

4. On the other hand, high-quality products are not always needed in the market. In many regional markets, especially in developing countries, consumers tend to prefer products with a certain quality but cheaper prices.

question 2: what is quality (definition of quality) quality

1. quality in physics: how much matter an object contains is called quality. Mass does not change with the change of the shape, state and spatial position of an object, and it is a basic property of matter, usually expressed by m. In the international system of units, the unit of mass is kilogram, that is, kg.

I have to mention that in physics, mass is divided into inertial mass and gravitational mass. Inertia mass represents the inertia of an object, while gravitational mass represents the gravity. In fact, countless accurate experiments show that these two masses are equal, that is, they are just different aspects of the same physical quantity.

question 3: what is the definition of mass? mass is a basic attribute of an object, which has nothing to do with the change of its state, shape and spatial position.

different objects contain different amounts of substances. The amount of matter contained in an object is called the mass of the object.

1. mass in physics: the amount of matter contained in an object is called mass. Mass does not change with the change of the shape, state and spatial position of an object, and it is the basic attribute of an object, usually expressed by m. In the international system of units, the unit of mass is kilogram, that is, kg.

2. In engineering terminology, quality is the overall characteristics and characteristics of products or services, and it is based on this ability to meet explicit or implicit needs.

3. Quality in geography: the sum of features and characteristics required or distinguishable for data to be suitable for application.

4. quality

Degree to which a set of inherent characteristics (3.5.1) meet the requirements (3.1.2)

Note 1: The term "quality" can be modified by adjectives such as poor, good or excellent.

Note 2: "Inherent" (its antonym is "endowed") refers to something or something that is inherent, especially the permanent characteristic.

5. in the iso quality system. Quality: the degree to which a set of inherent characteristics meets the needs or expectations that are expressed, usually implied or must be fulfilled.

6. in the international system of units, the basic unit of mass is kilogram, with the symbol kg. Initially, it was stipulated that the mass of cubic pure water of 111cm at 4℃ was 1kg. In 1779, a standard kilogram prototype was made of platinum-coated alloy and stored in the International Bureau of Metrology in Paris, France.

7. quality-related formulas: ① density calculation formula: ρ = m/v; Gravity calculation formula: G=mg, etc.

question 4: what does quality mean? Definition

mass is a physical quantity to measure the inertia of an object.

unit

mass is one of the seven basic dimensions in physics, with the symbol m.

in the international system of units, the basic unit of mass is the kilogram, with the symbol Kg. Initially, the mass of 1111cm3 (1dm3) pure water at 4℃ was defined as 1Kg. In 1779, a standard kilogram prototype was made of platinum-iridium alloy and stored in the French International Bureau of Metrology.

unit conversion:

1t = 1111kg

1kg = 1111g

1g = 1111mg

mass is the only factor that determines the difficulty of the change of motion state when an object is stressed, so mass is a physical quantity that describes the inertia of a substance.

mass is one of the basic dimensions in physics, with the symbol m. In the international system of units, the basic unit of mass is the kilogram (symbol Kg). Balance is a common tool for measuring quality in the laboratory.

in the history of mechanics, the definition of mass was first put forward by Newton. In the book Mathematical Principles of Natural Philosophy, it is written: "The quantity (mass) of matter is a measure of matter and is equal to the product of density and volume." Modern scholars have different opinions on this. E. Mach believes that density can only be defined as the mass per unit volume, so Newton's definition of mass is a logical cycle. But Newton did not define density, especially the modern definition that density is the mass per unit volume. Therefore, H. Crewe thinks: because density and specific gravity are synonyms at that time, the density of water is arbitrarily taken as 1, and the basic units are density, length and time; In such a system, it is logically permissible and natural to define quality by density. In addition, Newton explained his definition of mass in his book, saying: "Mass is determined by the weight of an object, because it is directly proportional to the weight. I have discovered this through many extremely accurate experiments." Newton said in another paragraph of the book, "When I say that objects have the same density, I mean that their inertia is directly proportional to their volume." It can be seen that Newton did not define mass by mass.

Before Newton, Huygens and Kepler clearly distinguished mass from weight. When Crewe discovered Huygens' discussion of centripetal force in 1673, he pointed out that when two particles move along an equal circle at constant speed, their centripetal force is directly proportional to the weight or "solid quantity" of the particles. The "solid quantity" here is quality. E. Hoppe thinks that Kepler first introduced the Latin word moles into New Astronomy (1619) to express quality.

in order to make the definition of mass in classical mechanics show the essence of mass, we should first make clear what to use to measure the substance contained in an object. For example, a pile of homogeneous pulverized coal has a certain number of molecules, which can provide a certain amount of heat. The number of molecules or heat content can be used to measure the substances contained in homogeneous pulverized coal sampling. That is to say, the quality of the same material sample must be measured by its inherent material characteristics. However, to compare the quality of different material samples (such as coal powder and cement, moon and earth, air and gas, etc.), we must measure them with not only inherent but also universal common properties, namely inertia and gravitation. Using inertia or gravity to measure the amount of matter can compare the quality of any different material samples. Measuring mass by inertia is closely related to Newton's law, so people often take the measurement of inertia as the definition of mass.

mass does not change with the shape and spatial position of an object, and it is one of the basic properties of matter, usually expressed by m. In the international system of units, the unit of mass is kilogram, that is, Kg, which is the mass of the original standard kilogram kept in the International Bureau of Metrology in sèvres, southwest Paris. The original device is a cylinder made of platinum (91%) and iridium (11%) alloy, and its diameter is equal to its height, and it is sealed in a glass cover in the form of a metal block.

In physics, mass usually refers to the equivalent properties proved by experiments: inertial mass and gravitational mass (active gravitational mass and passive gravitational mass). In daily life, mass is often used to represent weight, but in science, these two words represent different properties of matter.

when the same force is applied to two different stationary objects, it takes corresponding time for them to get the same speed. An object that takes a long time shows that it has great inertia; An object that takes less time shows that it has less inertia. That is to say, the acceleration of an object is inversely related to its inertia. According to Newton's second law, the acceleration of an object is inversely proportional to its mass under the same force. Because > >

question 5: what is the definition of quality? What is quality? Explaining according to Modern Chinese Dictionary is the essence of cognition and character. In the market competition, quality is the * * * of quality, reputation, responsibility and culture, quality is a consistent pursuit, and the external performance of quality is brand. Quality is not only a product, but also an external expression of the "character" of an enterprise.

excellent quality often makes the use of products get a value-added and satisfying experience, and then this experience is passed on to the people around to share, forming a good word-of-mouth communication, which plays a direct role in promoting product sales and brand image promotion.

quality construction is like a big tree taking root, the roots are not deep and the trees are not flourishing. But sadly, so far, the pursuit of excellent quality has not attracted enough attention from our enterprise managers.

in the process of consulting and diagnosing some enterprises, I found that some enterprises blindly pursue the external reputation of their brands, ignoring the foundation of the brand building, quality construction, and eventually collapsed and overturned because of the weak foundation.

In the early 1991s, the Chinese fast food "Red Sorghum", which was hyped as "patriotic" by the media, opened near McDonald's in front of Beijing, but it was not long before the store closed.

why didn't McDonald's from America go bankrupt? Many people don't understand why McDonald's sells a "bread" (hamburger) for ten dollars. In May, 2113, Beijing was shrouded in the terror of SARS, and the catering industry in Beijing suffered heavy losses: according to statistics, more than 91% restaurants closed down because there were no guests, but the two McDonald's near my apartment and office building were still crowded. At the beginning of June, many restaurants opened one after another. In order to attract customers, McDonald's announced that it would raise prices across the board.

let's not analyze the right or wrong of their business behavior. We just want to ask, why can McDonald's do this?

I'm afraid there is only one answer: the long-term hygienic quality of McDonald's. A truly quality restaurant cares about its customers from the kitchen. You can be skeptical or even distrustful of the hygiene and disinfection of other restaurants, but you can't help but believe the hygiene of McDonald's.

McDonald's has a very famous "QSC&; V "working program. These four letters are abbreviations of four English words (quality, service, cleanliness, and value): "excellent quality, home service, cleanliness and genuine goods". The founder of McDonald's thought: "It can help us build a bridge to the Atlantic Ocean!" From the beginning of its business, McDonald's has assessed the performance of all chain stores with these four standards. If it fails to meet the above four requirements repeatedly, its chain store manager will be fired or lose the right to operate McDonald's.

once, I specifically asked a neighbor's little girl who works in McDonald's, and she told me, "McDonald's always uses the best beef when making hamburgers. If the potato chips are a little burnt, they will be thrown away. If the oil used for French fries exceeds the prescribed time, it will be dumped."

According to my personal experience, whether going abroad or traveling in any domestic city, if there is no familiar restaurant, the quickest way is to find a McDonald's. Eating there, first, the hygiene is guaranteed, and second, it will definitely not be "slaughtered".