Question

Which best describes the law of conservation of energy?

a
Energy is always transferred from the system with the most energy to that with the least.
b
Energy cannot be created or destroyed; it can only change form.
c
Energy exists in these forms: mechanical, chemical, thermal, electromagnetic, and nuclear.

d
Energy can be created and destroyed in science labs.

Answer 1

b
Energy cannot be created or destroyed; it can only change form.