Question 13
What kind of energy is stored inside batteries?

Original choices (retained for review):
A. chemical energy
B. mechanical energy
C. potential energy
D. sound energy
E. heat
Editorial review: explain whether the choices give one scientifically valid answer.

Original choices (retained for review):
A. chemical energy
B. mechanical energy
C. potential energy
D. sound energy
E. heat
Editorial review: explain whether the choices give one scientifically valid answer.