Category: 3. Heat

What is temperature? Temperature is the measure of hotness or coldness of the body. What is the SI unit of heat? Joule What is the SI unit of temperature? Kelvin What are the sources of heat? Following are the sources of heat: Sun Chemical Electrical Nuclear How is heat classified? Heat is classified into: Hot… Continue reading Frequently Asked Questions – FAQs

Following is the table explaining heat vs temperature: Parameter Heat  Temperature  Definition  Heat is defined as the total energy of an object that has molecular motion inside it Temperature is defined as the measure of the thermal energy of an object SI Unit Joule  Kelvin  Symbol Q  T 

Conduction: It is the method in which the transfer of heat takes place between atoms and molecules in direct contact. Convection: It is the method in which the transfer of heat happens by the movement of the heated substance. Radiation: It is the method in which the transfer of heat takes place by electromagnetic waves.… Continue reading Heat Transfer Occurs By Three Mechanisms:

With the increase in the temperature of a body, the vibrations of molecules or atoms increase. These vibrations are then transferred from one part of the body to another. The measure of energy with which the molecules vibrate in a system is termed as heat stored in that object. As per the definition of heat, it is… Continue reading What is Heat?

Classification According to heat definition, it is one of the essential forms of energy for the survival of life on earth. Transfer of heat takes place from one body to another due to difference in temperature as per thermodynamics. We use heat energy for various activities like cooking, ironing, transportation, recreation, etc. This form of energy also plays… Continue reading Introduction