# If the total temperature increases, the calibrated airspeed

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molecules are much more widely separated from each other compared to a liquid or to a solid. So, they don't affect each other as much. So in a gas, the molecules are moving much more freely and randomly compared to a liquid.

The particles of a solid move only a little.
The particles of a liquid can move past each other.
The particles of a gas move fast.
Heat is a form of energy, so it has the units of energy. In the SI system, this is JoulesHeat depends on total mass and the speed of the particles. We can say that heat is the quantity of hotness of a system.
Temperature is related to energy, but it is not energy itself. Temperature is related to the average kineticenergy of the molecules of a substance. So temperature only depends on the speed of the particles and we can say temperature is thedegree of hotness.
Mercury thermometers have mercury filled in a glass tube and has a glass bulb at the bottom. As the temperature increases, the mercury rises in the glass tube. The glass tube is calibrated in Celsius, Fahrenheit or both. The rise in mercury determines the temperature according to the calibration.
Alcohol thermometers have ethanol or toluene instead of mercury in the glass tube. All the other mechanism of the thermometer are the same as that of the mercury thermometer. Alcohol thermometers are used as clinical thermometers and outdoor thermometers.
Digital thermometers use thermistors (temperature-sensing element) to sense the change in temperature and display the temperature on a digital display. They are widely used as clinical, outdoor and food thermometers.
Infrared thermometers use the infrared sensors to determine the temperature and have a digital display.
Heat is the thermal energy transferred from one object to another due to differences in temperature.
Convection is the transfer of heat by the physical movement of the heated medium itself. The heat source causes the fluid to expand and rise upwards. The hot fluid gives up its heat energy to cooler parts of the fluid. A convection current of warm fluid is set up.
Radiation represents the transfer of heat by electromagnetic radiation. In this process, infrared radiation is emitted by the hot object. Infrared waves are radiated from the hot object at the speed of light. An example of a body emitting radiation is the sun.
The temperature of human skin is usually about 32°C. Objects or surroundings at this level, known as physiological zero, produce no sensation of temperature.
• Award: give as an official payment or prize. (Conceder)
• To bump: to knock or run into something. (Golpear)
• Display: Show data or an image on a computer or screen. (Visualizar)
• Firing: aburning sensatión. (Quemazón)
• To gain: to increase the amount of something. (Aumentar)
• Randomly: made, done without method or conscious decision. (Al azar)
• To spread: extend or distribute over a wide area. (Extender)
• Upwards: moving towards a higher point or level. (Elevarse)
• Widely: to the full extent. (Generalmente)