What is temperature What is the definition of temperature?

A physical quantity that describes how hot or cold an object is.

Temperature is defined as a physical quantity that indicates how hot or cold an object is. Microscopically speaking, it is the intensity of the thermal motion of the molecules of an object.

The starting point (zero point) of the temperature reading and the basic unit of measurement of temperature are specified. The SI unit is the thermodynamic temperature scale (k). Other temperature scales that are more commonly used internationally are Fahrenheit (°F), Celsius (°C) and the International Practical Temperature Scale.

Physiologists believe that around 30 is the best ambient temperature for the human body, and it is also the temperature closest to the human **.

33 - Sweat glands start to work at this temperature for 2-3 hours, and the body's "air conditioning" - sweat glands start to act, and the accumulated body temperature is emitted through slight sweating.

35 - The heat dissipation function reacts immediately At this time, the superficial veins dilate, ** sweats, the heart beats faster, and the blood circulation accelerates. For some elderly and frail people with poor heat dissipation, it is necessary to cooperate with local cooling, or start the indoor air conditioner to reduce the body temperature.

36 - Level 1 AlertIn this temperature, the body "cools itself" by evaporating sweat and dissipating heat, excreting sweat and sodium, vitamins and other minerals every day, and blood volume is reduced. At this time, it is necessary to supplement with salt, vitamins, and minerals in time to prevent electrolyte imbalances in the body, and other cooling measures should be initiated.

Temperature is defined as a physical quantity that indicates how hot or cold an object is, and microscopically it is the intensity of the thermal motion of the molecules of an object.

The starting point (zero point) of the temperature reading and the basic unit for measuring the temperature are specified, the international unit is the thermodynamic temperature scale (k), and the other temperature scales that are more widely used in the world are the Fahrenheit temperature scale (°F), the Celsius temperature scale (°C) and the international practical temperature scale.

Fahrenheit:

Fahrenheit and Celsius are both units used to measure temperature, and many countries around the world, including China, use Celsius, and the United States and some other English-speaking countries use Fahrenheit and less so Celsius.

Fahrenheit (°F): A unit of measurement for temperature. Fahrenheit:

F=32+ degrees Fahrenheit is named after its inventor, the German Gabriel DFahrenheit (1681-1736), named after the 32°F freezing point, discovered that liquid metal mercury was more suitable for thermometers than alcohol, and invented the mercury thermometer. When the atmospheric pressure is, set the freezing point of water to 32 degrees and the boiling point of water to 212 degrees, and divide the temperature between 32 and 212 degrees into 180 equal parts, each equal part of which is 1 degree Fahrenheit.

The symbols for temperature are:Fahrenheit (°F), Celsius (°C).

Temperature is a physical quantity that indicates how hot or cold an object is, and microscopically it is the intensity of the thermal motion of the molecules of an object. Temperature can only be measured indirectly by certain characteristics of an object as a function of temperature, and the scale used to measure the temperature value of an object is called a temperature scale.

It specifies the starting point (zero point) of the temperature reading and the basic unit for measuring the temperature. The SI unit is the thermodynamic temperature scale (k). Other temperature scales that are more commonly used internationally are Fahrenheit (°F), Celsius (°C) and the International Practical Temperature Scale.

Optimal temperature: 1. The temperature of sun bathing is 15-30;

2. Keep the room temperature at 20-25;

3. The temperature of the bath water is 37-44;

4. The temperature of the foot washing water is 38-43;

5. The temperature of the cold water bath is 18-20;

6. The temperature of the meal is 30-42;

7. The temperature of drinking water is 30-40;

8. The temperature of making tea is 70-80;

9. The temperature of the bread is;

10. The temperature of the clothes is 36-60;

11. The temperature of the clothes must be higher than the body temperature;

12. When dressing to maintain the best comfort, the average temperature of ** is 33.

Temperature refers to the value displayed by the thermometer.

The essence of temperature is the speed at which microscopic matter moves. The faster the microscopic matter moves, the higher the temperature.

The thermometer reflects the average energy of the microscopic matter within the macroscopic object, which absorbs energy on the one hand and releases energy on the other. High-energy particles do not necessarily increase the temperature of the thermometer. If the number of energetic particles is scarce and the energy input to the thermometer is less than or equal to the energy radiated by the thermometer, the volume of matter inside the thermometer will not expand.

For example, the solar wind particles have a high energy but low density, so the solar wind cannot raise the temperature of the thermometer.

There are generally two ways to express temperature, which are as follows:

Celsius, e.g. 38, is the temperature corresponding to c on the thermometer.

Fahrenheit, for example, is the temperature corresponding to f on a thermometer.

The conversion formula between the two: Fahrenheit ( ) 32 + C ( ) temperature (temperature) is the physical quantity that indicates the degree of cold and heat of the object, and microscopically speaking, it is the intensity of the thermal motion of the molecules of the object. Temperature can only be measured indirectly by certain characteristics of an object that changes with temperature, and the scale used to measure the temperature value of an object is called a temperature scale.

It specifies the starting point (zero point) of the temperature reading and the family of basic units for measuring the temperature. The SI unit is the thermodynamic temperature scale (k). At present, other temperature scales that are more used in the world are Fahrenheit (°F), Celsius (°C) and international practical temperature scales.

From the point of view of molecular motion theory, temperature is a sign of the average kinetic energy of the molecular motion of an object. Temperature is the collective manifestation of the thermal motion of a large number of molecules and is statistically significant. For individual molecules, temperature is meaningless.

The degree of heat and coldness measured on one of several arbitrary scales based on an observable phenomenon (e.g., the expansion of a column of mercury).

Temperature is a physical quantity that indicates the degree of heat and cold of an object, and microscopically it is the intensity of the thermal movement of the molecules of the object. Temperature can only be measured indirectly by certain characteristics of an object as a function of temperature, and the scale used to measure the temperature value of an object is called a temperature scale.

Temperature is a manifestation of the average intermolecular kinetic energy within an object. The faster the molecule moves, the hotter the object, i.e., the higher the temperature; The slower the molecular motion, the colder the object, i.e., the lower the temperature. This phenomenon is described as the thermal potential, or energy effect of an object.

When the temperature is expressed in a numerical value, it is called a temperature degree.

Interpretation of the thermometer.

thermometer;Calorimeter] is an instrument for determining the temperature of the Celsius thermometer explained in detail also known as " thermometer ". An instrument for measuring temperature. There are thermometers, cold and heat meters, etc.

It is a closed glass tube, the lower end is cylindrical or spherical, and it is filled with mercury or alcohol to form a liquid column, which expands and contracts with the rise and fall of temperature, and the temperature value can be seen according to the scale where the top of the liquid column is located. There are two main scales: Celsius ( ) and Fahrenheit ( ), which are generally expressed in degrees Celsius. It is also used as a metaphor to refer to something that can be measured to change.

Lao She, "Four Generations in the Same Hall" 29: "The old lady saw that her son's face and spirit were wrong. A mother's heart is a thermometer of her children's feelings.

Word decomposition Explanation of Wen 温 ē lukewarm: temperate. Heat preservation.

Cooling. Hot spring. Mild.

Hotbed. Gentle temperament : gentle.

Warmth (soothing and considerate). Warmth. Docile.

Quiet. Gentle. Gentle.

Heat slightly: Warm the wine a little. Review:

Review Tan Tan Chun. Learn from the past. Ancient with "plague".

Surname. Warm.