Question

select the correct answer. how does the law of conservation of energy apply to machines? a. machines create energy from scratch. b. machines consume energy until no energy remains. c. energy transferred to a machine equals energy transferred from it. d. engineers break the law of conservation of energy by using machines.

Explanation:

The law of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed. Machines do not create energy from scratch (A is wrong), they transfer energy. They do not consume all energy until none remains (B is wrong), and engineers do not break the law of conservation of energy when using machines (D is wrong). Energy transferred to a machine equals energy transferred from it, accounting for any losses such as heat or friction, which is in line with the conservation - of - energy principle.

Answer:

C. Energy transferred to a machine equals energy transferred from it.