Question

Which of the following is not an example of an energy transformation? a. Heating up dinner in a microwave b. Solar panels at work c. Formation of static electricity d. None of the above

Short answer

Short Answer: The formation of static electricity (option C) does not exemplify energy transformation, as it involves the separation of charged particles rather than converting one form of energy to another.

Step-by-step solution

Define Energy Transformation

Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. Examples of energy transformations include converting kinetic energy into potential energy, converting chemical energy into heat energy, and converting solar energy into electrical energy.

Evaluate option A

Option A: Heating up dinner in a microwave involves converting electrical energy into heat (thermal) energy. The microwave oven takes electrical energy from the power outlet and converts it to electromagnetic waves, which in turn heat up the food molecules. This is an example of energy transformation.

Evaluate option B

Option B: Solar panels at work involve the conversion of solar energy (radiant energy) into electrical energy. Photovoltaic cells within the solar panels absorb sunlight and generate direct current (DC) electricity, which can then be used to power electrical devices or charge batteries. This is also an example of energy transformation.

Evaluate option C

Option C: Formation of static electricity involves the separation of charged particles due to friction between two surfaces. When two objects rub against each other, electrons can be transferred from one object to another, resulting in an imbalance of electric charges. Although this process involves electric charges, it is not a traditional energy transformation since it doesn't involve the direct conversion of one form of energy to another. Therefore, option C is not an example of an energy transformation.

Identify the correct answer

Based on the analysis of each option, we can conclude that option C, the formation of static electricity, is not an example of an energy transformation. The correct answer is C.