You are presented with the question "What can become heat energy?" and the following answer choices: 
- objects that have mass
 - rain or sun shine
 - Chemical energy
 - hydrogen and oxygen
 - an engine
 - static electricity
 - centrifugal force
 - g forces

Now knowing that aflashlight converts chemical energy into light energy and light energy can become heat energy and heat energy can become light energy, choose the best answer.


 

   Chemical energy      