Final answer:
A battery-operated remote control car involves two energy transformations: first, from chemical to electrical energy, and second, from electrical to kinetic energy as it moves.
Step-by-step explanation:
The student has asked which object involves two energy transformations when used. The correct answer to this question is a battery-operated remote control car (c). The energy transformations occur as follows: first, the chemical energy stored in the batteries is transformed into electrical energy; then, this electrical energy is converted into kinetic energy to power the car's movement. Comparatively, options a, b, and d involve one primary energy transformation - electrical energy to sound (radio), heat (toaster), and mechanical (blender), respectively.
Reviewing examples of None of the Above not being an energy transformation shows a misunderstanding, as all options a, b, and c listed do involve energy transformations. Heating dinner in a microwave changes electrical energy to heat, solar panels convert light to electrical energy, and the formation of static electricity involves the transformation of mechanical energy to electrical energy. None of these examples represents the absence of an energy transformation.