Heat transfer by electromagnetic waves

Answer 1

radiation

Answer 2

radiation

Answer 3

The transfer of heat by electromagnetic radiation is called thermal radiation. It is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

Answer 4

Objects give off heat energy as radiant energy.

The energy given off is electromagnetic energy.
All objects are constantly radiating electromagnetic energy (radiant energy) and all objects are constantly absorbing electromagnetic (radiant energy) from their environment.

Objects exchange heat energy with their environment through the usual process of thermal conduction as well. In most cases thermal conduction is the dominant form of heat transfer between an object and its environment.

Light is a well known form of electromagnetic energy, and it happens to be the form to which the human eye is sensitive. There is much infrared light in our environment that the eye can not see. That infrared light, particularly the far infrared, is electromagnetic energy generated by warmer objects in our environment. If the object is warm enough, it generates visible light. It is for that reason that we refer to something as red hot or even white hot.

Thermal imaging is a well known way of detecting the radiant energy from objects.

Answer 5

Heat is energy caused by photons communicating the electromagnetic field. Thus, heat is part of the electromagnetic spectrum (infra-red).

Answer 6

Electromagnetic waves is often called electromagnetic radiation.

It transfers heat with the process of radiation.

Answer 7

radiation

Answer 8

radiation

Answer 9

radiation

Answer 10

Radiation