mechanical, chemical, electrical electrical, chemical, mechanical electrical, mechanical, chemical chemical, electrical, mechanical
I gave my students this multiple choice question: When a battery operated train is turned on, it moves along the track. Which best identifies the order of the types of energy used to make the train move?

Only one answer is correct among these 4 choices:
- mechanical, chemical, electrical
- electrical, chemical, mechanical
- electrical, mechanical, chemical
- chemical, electrical, mechanical

Could you tell me which one is correct?

chemical, electrical, mechanical