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Some work is lost due to friction. This energy is normally released as heat.

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โˆ™ 2017-06-22 08:10:27
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Q: Why is the efficiency of a machine always less than 100 percent?
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Why a normal machine could not have the mechanical efficiency of 100?

Because there is always going to be friction, the efficiency of any machine will always be less then 100 percent.


Does an ideal machine have an effciency of 100 percent?

Yes, an ideal machine would have an efficiency of 100%, but no machine is ideal. Because some work is wasted in all machines, there will always be less than 100% efficiency in all machines.


If the output work of a simple machine is than the input work the machine is said to have less than 100 percent efficiency?

less


The efficiency of an actual machine is always less than what percent?

It is always less than 100% Theoretical machines can have efficiencies of 100% but in practice there is always some energy loss Efficiencies of more than 100% are not allowed by the laws of thermodynamics!


How does friction change the energy in a machine?

Friction dissipates energy. It may heat the machine or its surroundings, and it's always responsible for the machine's efficiency being less than 100% . . . you always get less energy out of a machine than you put into it.


What is meant by the efficiency of a machine?

It is the output energy compared to the input energy. This will always be less than 100%


Why is the efficiency of a machine less than 100 percent?

Some energy is always lost in overcoming friction which converts part of the input energy into non-productive forms such as heat or sound.


What is a machine with efficiency of less than one?

no machine has one


How does effieciency of the machine affects it's performance?

if a machine is not efficient, it cannot fully utilise its performance. actual performance = efficiency x possible performance efficiency = actual performance / possible performance efficiency is always a decimal number less than 1, as no machine is perfect in terms of efficiency


What is the relationship between friction and the efficiency of a machine?

The relationship between friction and the efficiency of a machine is when friction increases, efficiency decreases, and vice versa. That is why you can never have 100% efficiency, because there is always at least a little friction. They are inversely proportional, meaning, higher friction equals less efficiency.


What is the relationship between friction and efficiency of a machine?

The relationship between friction and the efficiency of a machine is when friction increases, efficiency decreases, and vice versa. That is why you can never have 100% efficiency, because there is always at least a little friction. They are inversely proportional, meaning, higher friction equals less efficiency.


The output work of a simple machine is than input work the machine is said to have less than 100 percent efficiency?

so wut exactly is ur question?

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