Question

Which of the following statements describe the transfer of energy?

-Collisions of atoms causing nuclear reactions
-A car speeding up from 5 mi/hr to 40 mi/hr
-A weightlifter lifting 100 lb. bell bar from his chest to a certain height
-A transformer stepping down the voltage of electricity in power lines

Answer 1

The answer should be A weighlifter lifting 100lb. bell bar from his chest to a certain height.