You are presented with the question "What can convert chemical energy into kinetic energy" and the following answer choices: 
- a magnet
 - a vacuum
 - a windmill
 - a battery
 - arteries
 - barnacles
 - animals
 - engines

Now knowing that abattery converts chemical energy into electrical energy and electrical energy can be converted into kinetic energy and heat energy by an electric motor, choose the best answer.


 

    a battery     