Which of the following is NOT a method of transferring energy between stores?

The transfer of energy between stores can occur through various processes, and recognizing the characteristics of these methods is key. Mechanically, energy can be transferred through forces acting upon objects, such as pushing or pulling. Heating involves the transfer of thermal energy, often between substances at different temperatures, utilizing mechanisms like conduction, convection, or radiation. Electrical transfer happens when energy moves through electrical circuits or conductive materials, allowing for the use and distribution of electrical energy.

Radioactive transfer, on the other hand, does not fit in the same category as the other methods because it refers to a process of decay in which unstable atomic nuclei release energy in the form of radiation. This process does not constitute a direct transfer of energy from one store to another in the conventional sense; instead, it involves the transformation of matter and energy at the atomic level. Therefore, while mechanical, heating, and electrical methods clearly demonstrate how energy can be actively transferred between stores, radioactive decay represents a different phenomenon altogether, making it distinct from the common methods of energy transfer.