GENERAL KNOWLEDGE

Detailed explanation-1: -The modes of this energy transfer can be conduction, convection, and radiation. Similarly, temperature refers to the kinetic energy of any system and it shows how cold or hot an object or system is. Therefore, heat is simply another word for the internal energy that flows from hot to cold.

Detailed explanation-2: -Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

Detailed explanation-3: -And unless people interfere, thermal energy-or heat-naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means. The processes are known as conduction, convection and radiation. Sometimes more than one may occur at the same time.

Detailed explanation-4: -Another name for thermal energy is internal energy or heat energy.

Detailed explanation-5: -The transfer of heat goes from the hot object to the cold object. We can imagine a system, however, in which the heat is instead transferred from the cold object to the hot object, and such a system does not violate the first law of thermodynamics.