Asked by: Wiebke Walkowitzbusiness and finance mechanical and industrial engineering industry
What is happening when machines lose energy due to friction?
Last Updated: 13th May, 2021
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Likewise, people ask, can make machines more efficient by reducing friction?
Machine Efficiency The output work is always less than the input workbecause some of the input work is used to overcomefriction. Therefore, efficiency is always less than100 percent. The closer to 100 percent a machine'sefficiency is, the better it is at reducingfriction.
Similarly, why can't perpetual motion machines work? A perpetual motion machine of the first kindproduces work without the input of energy. It thus violatesthe first law of thermodynamics: the law of conservation of energy.This conversion of heat into useful work, without any sideeffect, is impossible, according to the second law ofthermodynamics.
Also question is, can machines increase energy?
A machine cannot increase the amount ofenergy you put into it. In most cases, a simplemachine is used to reduce the amount of force you must exertto do work. The down side is that you must exert the forceover a greater distance, because the product of force and distance,fd, (which equals work) does not change.
How do machines change the way work is done?
They just change how the work is done.Machines make work easier by increasing the amount offorce that is applied, increasing the distance over which the forceis applied, or changing the direction in which the force isapplied. A: The machine must apply the force over a shorterdistance.