Question

The degree of hotness and coldness of the body is called temperature.
A. True
B. False

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.
Hence, the given statement is true. This means that the correct option is A.
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.