CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Radiation is the transfer of heat energy through space by electromagnetic radiation. Most of the electromagnetic radiation that comes to the earth from the sun is in the form of visible light.

Detailed explanation-2: -In RADIATION, heat is carried directly by electromagnetic waves. When a hot object touches a cool object, heat moves from the hot one to the cool one. When objects transfer heat, they cool down to a lower temperature unless the heat energy they lose is constantly replaced.

Detailed explanation-3: -Radiation heat transfer is a process where heat waves are emitted that may be absorbed, reflected, or transmitted through a colder body. Sun heats the earth by electromagnetic waves. Hot bodies emit heat waves.

Detailed explanation-4: -The thermal radiation also called infrared radiation can transmit heat through empty space. In the radiation no mass is exchanged and no medium is needed. For example the heat from the sun or heat emitted from the filament of a light bulb is an example of the radiation.

Detailed explanation-5: -Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth. In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.