When matter and energy change forms within a closed system,

Question

A.
the total amount of energy changes, but the total amount of matter does not.

B.
the total amount of matter changes, but the total amount of energy does not.

C.
the total amount of both matter and energy changes.

D.
the total amount of both matter and energy does not change.

Answer 1

The correct answer is:

D. the total amount of both matter and energy does not change.

This is based on the conservation laws in physics, specifically the conservation of mass-energy, which states that within a closed system, the total mass and total energy remain constant, although they can change forms (e.g., energy can be converted to matter and vice versa).