Final answer:
The statement 'Energy is never created nor destroyed' characterizes a scientific law, namely the Law of Conservation of Energy, a widely accepted principle in physics that establishes the constancy of energy in an isolated system.
Step-by-step explanation:
The statement "Energy is never created nor destroyed" best characterizes a scientific law. Specifically, it refers to the Law of Conservation of Energy. This law is a fundamental concept in physics that applies to all physical and chemical processes. According to this law, the total amount of energy in an isolated system remains constant, although energy may change forms. For instance, chemical energy in a battery can transform into electrical energy, which can then do work, such as lighting a bulb. No matter the type of energy transformation, the total energy remains unchanged.
The Law of Conservation of Energy is not just a hypothesis or a theory; it is a widely accepted principle that has been tested and confirmed through countless experiments and observations. While a hypothesis is a tentative explanation that requires validation through experimentation, and a theory is a well-substantiated explanation of an aspect of the natural world, a law like the Conservation of Energy is a succinct statement that consistently describes a phenomenon observed in nature.