SSC MTS EXAM

Detailed explanation-1: -Heat is a transfer of thermal energy caused by a difference in temperature. This temperature difference is also called a temperature gradient. Since heat is a movement of energy, it is measured in the same units as energy: joules (J).

Detailed explanation-2: -Heat is a measure of the flow of thermal energy from one object or substance to another. Thermal energy typically flows from a warmer material to a cooler material. Generally, when thermal energy is transferred to a material, the motion of its particles speeds up and its temperature increases.

Detailed explanation-3: -Heat is the transfer of kinetic energy from one medium or object to another, or from an energy source to a medium or object. Such energy transfer can occur in three ways: radiation, conduction, and convection.