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When you input force to do work, the output work cannot be greater than what is
put in, because work is energy, and energy is 'conserved'. That means it can't be
created out of nothing.
If you had a box that could put out more work than you put in, you would be king
of the world. Once you get the box going, you could take off enough of the output
work to put back into the input and keep it going, and you'd have some left over
that could be used to generate electricity, run a car, lift a load, cut wood, cook a
fish, heat a room, power a boat, weave a rug, boil water, plow a field, etc. And
your box could do any of these things without a single drop of oil or lump of coal!
It's called "perpetual motion". It's fundamentally impossible, but scam artists for
hundreds of years have been able to shake millions of dollars out of investors who
could be convinced that you can get more work out of a machine than you put it.
YOU CAN'T MAKE THE WORK OUT PUT GREATER THAN THE INPUT BECAUSE FRICTIONS ALWAYS PRESENT SO YOU WILL NEVER HAVE 100% EFFECIENCY
All machines are limited by the Laws of Thermodynamics.
The Carnot cycle shows the maximum efficiency of any process for a given temperature. Efficiency, (work output:work input), is inevitably reduced by the presence of flaws in operation and or design of the machine. Natural inefficiency factors also play a great part in this reduction: friction, air drag, rusting, etc. There has yet to be a 100% efficient machine
That's easy to answer with the law of Conservation of Energy ... energy is never
created or destroyed, it just gets moved around, a lot like snow in northern Alaska.
Put some energy into a machine, and that's the only energy that's available to come out
the other end, unless somebody pours in some more energy in the middle. Energy can
never just magically appear out of nothingness somewhere inside the machine.
The output work is less because of what is lost to heat and friction within the machine.
The output work is always slightly less than the work input work. This is because some of the work done is used to overcome friction created by the use of the machine. However the work is not lost. The output work plus the work done to overcome friction = the input work. The less work the machine does to overcome friction the greater the efficiency.
What else can I help you with?
Is the output distance always greater than the input distance?
No, the output distance is not always greater than the input distance. It depends on the specific situation and factors involved.
Explain why the output work for any machine cant be greater than the input work?
The output work from a machine cannot be greater than the input work because of the law of conservation of energy. Energy cannot be created or destroyed, only transformed from one form to another. Therefore, the output work of a machine cannot exceed the input work that was initially put into it.
The output force of a rake is greater than the input force?
This is possible when using a lever system with the rake, where the input force is applied over a shorter distance but results in a greater output force over a longer distance. The mechanical advantage gained from the lever system allows for the output force to be greater than the input force in this scenario.
If you exert an input force over a greater distance than the distance exerted by the output force for an ideal machine compare the size of the input and output forces.?
In an ideal machine, if you exert an input force over a greater distance than the output force, the input force will be smaller than the output force. This is because work input is equal to work output in an ideal machine, and work is calculated as force times distance. Therefore, if the input force acts over a greater distance, the output force must be larger to balance the work done.
Can you make work output of a machine greater then the work input?
No. And you cannot make it greater THAN the input, either.
If a machine has a mechanical advantage much greater than 1 how will the output force be in comparison to the input force?
The Output Force Will Most Likely Be Greater Than The Input Force. So "OUTPUT" Is Greater Than "INPUT".
What is a comparison of a machine's work output and work input?
Output is always greater than input. The output is multiplied from input.
Explain why the output work for any machine cant be greater than the input work?
The output work from a machine cannot be greater than the input work because of the law of conservation of energy. Energy cannot be created or destroyed, only transformed from one form to another. Therefore, the output work of a machine cannot exceed the input work that was initially put into it.
The output force of a rake is greater than the input force?
This is possible when using a lever system with the rake, where the input force is applied over a shorter distance but results in a greater output force over a longer distance. The mechanical advantage gained from the lever system allows for the output force to be greater than the input force in this scenario.
Work output can never be greater than?
Work input.
Is energy input usually greater than energy output?
In general, no – energy input is not usually greater than energy output. In a closed system, energy is conserved, meaning that the total amount of energy remains constant. However, in real-world systems, there may be inefficiencies or losses that result in some energy input being converted into forms that are not useful as output.
Is work output greater than work input?
No, work output can never be greater than work input according to the principle of conservation of energy, which states that energy cannot be created or destroyed, only transformed from one form to another. In any system, the work input will always be equal to or greater than the work output.
When is the mechanical advantage greater than one?
The IMA of a machine is greater than 1 whenever the output force is greater than the input force.
How can you see that the transformer is a step down or a step up?
If the primary voltage (input) is less than the secondary (output) then it is a step-up. If the input is greater than the output then it is a step-down transformer.
What type of lever is the output force smaller than the input force?
A second-class lever. In this type of lever, the output force is always smaller than the input force, but the trade-off is that the output force moves a greater distance than the input force. Examples of second-class levers include wheelbarrows and nutcrackers.
If the output force is greater than the input force of a simple machine Is the mechanical advantage is less than one?
No, the mechanical advantage is greater than 1. If you input a force of 1 unit you get out a force of 1+ units. However keep in mind that if this were a PERFECT machine the amount of WORK INPUT is EQUAL to the the amount of WORK OUTPUT. Since perfection is not possible, and there are frictional losses this is not possible. Otherwise you could have a perpetual motion machine, which is not yet possible.
Why is output work sometimes greater than input work?
It CAN'T be greater, unless some energy reserve within the machine gets used up. Other than that, getting more work out of a machine than is put in it would violate conservation of energy, and according to our current understanding of physics, that simply isn't possible.
