Question

The degree of hotness and coldness of the body is called _ _ _ _ _ _ _ _ .

Answer 1

Hint: The answer to this question is very simple. We use this word very often. For example, when we feel seek we check it with the help of a thermometer. We mostly measure it in units of degree Celsius and Fahrenheit.

Complete step by step answer:
The degree of hotness and coldness is called temperature. Temperature is a quantity that defines the state of a substance (especially in gases). Temperature is a measurement of hotness and coolness of a body. We feel that a body is hot when its temperature is higher and when the temperature of a body is lower it feels colder.
The SI unit of temperature is Kelvin. Other unit is degree Celsius.
Additional Information: Temperature is one of the fundamental physical quantities. The relation between the Kelvin scale and the degree scale is as follows:
${{T}_{C}}+273={{T}_{K}}$, where ${{T}_{K}}$ is the temperature in kelvin and ${{T}_{c}}$ is the temperature in Celsius scale.
There are two more temperature scales known as Fahrenheit scale and Rankine scale. The relation between the four scales is as follows:
$\dfrac{C}{100}=\dfrac{F-32}{180}=\dfrac{K-273}{100}=\dfrac{R-492}{180}$
F, R, C and K are temperatures in Fahrenheit, Rankine, Celsius and Kelvin respectively.
Many systems in our biosphere exist at an optimum temperature. A small change in the temperature, affects the system on a large scale.

Note: Sometimes we get confused between heat and temperature. As said temperature is a measurement of hotness or coldness. Heat is a form of energy. A body at higher temperature is hotter and it transfers energy to a colder body, which we call as heat.
Heat and temperature are correlated but not the same. The heat exchange depends on the temperature difference between the bodies.