Question

as a person pushes a box across a floor, the energy from the persons moving arm is transferred to the box, and the box and the floor become warm. during this process, what happens to energy? it is increased. it is conserved. it is decreased. it is created.

Explanation:

According to the law of conservation of energy, energy cannot be created or destroyed, only transferred or transformed. In this scenario, the mechanical energy from the person's arm is transferred to the box as kinetic energy and also transformed into heat energy due to friction between the box and the floor. The total amount of energy in the system remains the same.

Answer:

It is conserved.