Question

Which claim best represents the Law of Conservation of Energy?

a) This is true all of the time.
b) This is true for only half of all energy conversions.
c) This is never true because energy is always lost due to friction.
d) This is only true on even-numbered days.

Answer 1

The Law of Conservation of Energy, which states that energy in an isolated system cannot be created or destroyed but only converted from one form to another, is always true.

Step-by-step explanation:

The claim that best represents the Law of Conservation of Energy is (a) This is true all of the time. According to this fundamental law, energy in an isolated system can be neither created nor destroyed. Energy can be converted from one form to another, yet the total amount of energy remains constant. This is a core principle not only in physics but also a version of the first law of thermodynamics, which you may encounter in further studies.