physical science i / work, power, energy / lesson: conservation of energy\nlesson: conservation of…

physical science i / work, power, energy / lesson: conservation of energy\nlesson: conservation of energy\nto do: receive a grade\nyou have earned 12 point(s) out of 12 point(s) thus far.\nis a perpetual motion machine possible?\nyes, there are machines that keep going forever without energy being added.\nno, machines will always lose some energy to things like friction, heat and sound.

physical science i / work, power, energy / lesson: conservation of energy\nlesson: conservation of energy\nto do: receive a grade\nyou have earned 12 point(s) out of 12 point(s) thus far.\nis a perpetual motion machine possible?\nyes, there are machines that keep going forever without energy being added.\nno, machines will always lose some energy to things like friction, heat and sound.

Answer

Answer:

B. No, machines will always lose some energy to things like friction, heat and sound.

Brief Explanation:

Based on the law of conservation of energy and real - world factors like friction, perpetual motion machines are not possible as energy is always dissipated.