I'm a teacher. I need to teach this subject to a group of smart 9th grade students that I am prepping to begin a "Green Physics" project. What are the energy transformations associated with a hydroelectic dam? I think I have it up to a certain point, and then I'm less than sure. Here's what I have so far: 1) Gravitational potential energy of water is transformed into kinetic energy of water. 2) Kinetic energy of water is transformed into rotational kinetic energy of a turbine. 3) Rotational kinetic energy of a turbine is transformed into magnetic field energy in an AC generator. 4) Magnetic field energy in an AC generator is transformed into electic field energy in an AC generator. 5) Electric field energy in an AC generator causes electrons to flow. Where am I incorrect or incomplete? Thank you.