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Why is work output of a machine always less than the work input?
Wiki User
∙ 11y ago
TNSTAFL
There's no such thing as a free lunch.
There are ALWAYS losses in any machine (friction being the most common)
There is a joke exception - the electric heater ... since the losses are the desired result.
Wiki User
∙ 11y ago
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Why is the work output of a machine always less than the work input?
In a real machine, the output work is always less because input energy will be converted to heat energy and lost.
Why is the output work always less than the input work for a real machine?
because output work is input work divided by two
Is the work output always less than the work input when a machine is used to perform a task?
yes
Explain why the amount of work that a machine does is less than the amount put into the machine?
Output work is always less than input work.
Is it true that work output of a machine is always less than work input because of energy lost due to friction?
Yes this it true, because a percent of the input energy is converted to heat, which causes the output to became less than the input.
Why is the work output of a machine always less than the work input?
In a real machine, the output work is always less because input energy will be converted to heat energy and lost.
Why is the output work always less than the input work for a real machine?
because output work is input work divided by two
What is the reason a machine's output work is always less than the input force?
Entropy.
Why in a real machine the output work is always less the input work?
In a real machine, part of the energy (or power) is always wasted.
Is the work output always less than the work input when a machine is used to perform a task?
yes
What is meant by efficiency of a machine?
It is the output energy compared to the input energy. This will always be less than 100%
Why is work output by a machine always less than the work input?
It is usually unavoidable that some energy is wasted.
How is the work output of a machine related to it's work input?
In an ideal universe, where there are no friction or heat transfer losses, work out = work in. In our universe, however, work output is always less than input. How much less depends on the efficiency of the machine's design.
Explain why the amount of work that a machine does is less than the amount put into the machine?
Output work is always less than input work.
Is it true that work output of a machine is always less than work input because of energy lost due to friction?
Yes this it true, because a percent of the input energy is converted to heat, which causes the output to became less than the input.
What causes the output work of a machine to be less than the input force?
Some of input energy is wasted in heating up the molecules, sound,etc therefore the resultent output work is always less than the input force due to loss of energy.
Why is the output work in a machine always less than the input work?
Every real machine is subject to forces that reduce output. These include actual forces such as friction, or human controlled forces such as imperfect machining. This reduces the output to less than the ideal.
