Awindmill converts wind energy into electricity primarily by using mechanical energy, and today, new kinds of windmills, called wind turbines, generate electricity. Given these facts, what type of energy does a wind turbine use to convert wind energy among the following options:
- energy
 - unidirectional
 - mechanical
 - thrust
 - waves
 - rays or beams
 - direct energy
 - adding heat


 

   mechanical      