Any other energy really.Light, just look at a lamp or a tv. Sound, any speaker. Mechanical, the rotation of gears or a fan. Magnetic, if an electrical current is wrapped around a ferromagnetic material. Heat, an often byproduct of any energy transfer, just feel a light bulb, or the side of your computer. some that it can't be easily transformed to include: (or at least I draw a blank for now) nuclear, elastic, chemical