Question

Which direct measurement would provide evidence that the energy of a substance had changed?

A. temperature
B. heat
C. mass
D. volume

I think the answer is a or b

Answer 1

I think the answer is A. I would choose heat, also, but T measures heat. And choosing heat means ONLY heat would be evidence but CHANGE in T is what counts; i.e., it could get colder or hotter and be evidence that a change in energy had occurred. So temperature I think is the right answer.