When baking cookies in an oven, the primary energy transformation occurs as electrical energy gets converted into heat energy to cook the cookies. This process involves the oven using electrical energy to produce heat, which then affects the chemical structure of the ingredients in the cookies. Therefore, the most accurate energy transformation for this scenario is:
a: heat energy → electrical energy → chemical energy
However, since baking does not involve the reverse transformation of heat energy back into electrical energy, it seems none of the options fully encapsulate the process involved. The closest fit, considering the intended baking process, would be the transformation from electrical energy to heat energy, affecting the chemical energy of the ingredients.
Therefore, if we have to choose one from the given options, they may not accurately reflect the correct energy transformations involved in the baking process. The correct process primarily is:
Electrical energy → heat energy → chemical energy.
If we strictly focus on the transformation during the baking process itself, it can be summarized as:
Electrical energy (from the solar panels) → heat energy (in the oven) → chemical energy (transformed in the cookies).
Given the provided options, this doesn't cleanly fit any choice.