GED Science Practice 2025 - Free GED Science Practice Questions and Study Guide

The concept of "radiant heating" primarily relates to the transfer of heat through radiation, which is best captured in the idea of heating a building by radiation from hot water panels. In radiant heating systems, warm water circulates through pipes in floors, walls, or ceilings, transferring heat to the surfaces and subsequently warming the surrounding air in a room. This method allows for efficient and comfortable heat distribution.

The other options relate to different concepts. For instance, while energy transmitted in the form of radiation is part of the underlying principle, it does not fully encapsulate the specific application in heating systems. The measuring instrument used to detect distant objects pertains to technologies like radar or telescopes, which do not involve heating. Lastly, the spontaneous emission of particles or electromagnetic rays in nuclear decay refers to nuclear physics, focusing on unstable atomic nuclei rather than the heating process in buildings.