A device that converts mechanical energy into electrical energy is called a:

1. The stem describes a device whose energy input is mechanical (e.g. rotation) and whose output is electrical. 2. The text states: "A device such as this that converts mechanical energy into electrical energy is called a generator." 3. A motor does the reverse conversion (electrical to mechanical), and a transformer changes voltage levels rather than energy form. 4. So the correct device for this mechanical-to-electrical conversion is a generator. _Source: OpenStax Physics Ch 20 "Magnetism", p.687 §20.2 Motors, Generators, and Transformers_