Question

the degree of hotness and coldness of an object​

Answer 1

Answer:

The degree of hotness or coldness of the body is called temperature.

A measure of the warmth or coldness of an object or substance with reference to some standard value. The temperature of two systems is the same when the systems are in thermal equilibrium.

Hence option A is correct

Explanation:

Answer 2

Answer:

The degree of hotness and coldness of an object​ is called temperature .

Explanation:

• Temperature is the intensity of hotness or coolness.
• Temperature is a parameter that describes a substance's state (especially in gases).
• A body's hotness and coolness are measured by its temperature.
• When a body's temperature rises, we perceive it as hot, and when it falls, we perceive it as cold.
• Kelvin is used as the SI unit of temperature. Another unit is Celsius degrees.
• The degree scale and the Kelvin scale are related in the following ways:

       $T_{C} +273=T_{K}$ ,

      where  $T_{K}$ ⇒ Temperature in Kelvin

      $T_{C}$ ⇒ Temperature in Celsius.

• We occasionally mix up the concepts of heat and temperature. As previously stated, the temperature is a measure of warmth or coolness. However, energy comes in the form of heat. Heat is the energy that a hotter body transmits to a colder body in order to warm it up.
• Heat and temperature are related, but they are not the same thing. The temperature differential between the bodies affects how much heat is exchanged.

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