What are the three energy transformations that take place when you use a flashlight?
The energy transformations that I would mention are as follows:Chemical Potential Energy --> Electrical Energy (In Battery)Electrical Energy --> Light Energy (In Bulb)Electrical Energy --> Heat Energy (In Bulb)Transformations 2 and 3 happen at the same time, because 3 is a side-effect of the intended transformation 2. I can't think of any other transformations, unless you wanted to consider the process of making the battery, or take the example of an unconventional flashlight.