You are presented with the question "Generators convert what into a powerful energy source?" and the following answer choices: 
- circulatory systems
 - kinetic energy
 - engines
 - Organic compounds
 - organic molecules
 - rays or beams
 - a hydraulic system
 - photons

Now knowing that agenerator converts kinetic energy into electrical energy and electricity is a powerful energy source, choose the best answer.


 

  kinetic energy       