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No, that would be a violation of the laws of physics.
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∙ 11y ago
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Can a simple machine put out more energy than is put into it?
NO. No system can put out more Energy than is put into it. That would violate the 2nd Law of Thermodynamics. However, a simple machine, like a lever can put out more Force than is put in.
Why cant a machine put as much energy out as you put in?
Losses of energy within the machine- some of the energy is used up by friction, and converted to heat. There is also the matter of efficency of a machine. The less efficent, the more power you must put in to get the same output.
Why is a perpetual motion machine not possible?
It's not possible because it would violate one or both of the laws of thermodynamics. The first law of thermodynamics says that you can't create energy from nothing, or to out it another way, you can't get more energy out of a machine than you put into it. The second law says that no machine is 100% efficient. You must actually get less energy out of a machine than you put into it. The laws of thermodynamics apply to the entire universe and all bodies within it, including alleged perpetual motion machines.
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.
What is perpatual motion?
It is the idea of a machine continuously producing energy, without energy input - or producing more energy than what is put into the machine. This would violate the First Law of Thermodynamics (conservation of energy), and in general, it is not believed to be possible. No process is known which violates the conservation of energy. (A "perpetual motion machine of the second kind" would violate the Second Law of Thermodynamics; this is generally believed to be impossible, too.)
Can a simple machine put out more energy than is put into it?
NO. No system can put out more Energy than is put into it. That would violate the 2nd Law of Thermodynamics. However, a simple machine, like a lever can put out more Force than is put in.
In what way is a machine subject to the law of energy conservation?
The law of conservation of energy was never found to be violated. The relevance for a machine is that a machine can not produce more energy than is put into the machine.
Does Pascals principle provide a way to get more energy from a machine than is put into it?
Yes
Why is the amount of that a machine does is less than the amount put into the machine?
In such a machine, the remaining energy is wasted to friction
Why cant a machine put as much energy out as you put in?
Losses of energy within the machine- some of the energy is used up by friction, and converted to heat. There is also the matter of efficency of a machine. The less efficent, the more power you must put in to get the same output.
Is a machine physically possible that has an efficicency greater than 100 percent?
No. In fact, in the real world, a machine with an efficiency of only 100%isn't even physically possible.But why isn't an efficiency greater than 100% physically possible ?Efficiency means (output energy) divided by (input energy) .If efficiency is greater than 100%, that means output/input is greater than ' 1 ', andthat means that you get more energy out of the machine than you put into it.Where could that extra energy come from ? Remember the law of conservationof energy ? It says that energy is never created or destroyed. So you can't getmore energy out of a machine than you put into it, and output/input can't bemore than ' 1 '.It sure would be nice though: Put some energy into the machine to get it started,and then just sit back and watch it run. Out of the end comes more energy thanwhat it takes to run the machine, so you split up the energy that comes out. Youtake just enough to keep the machine running, and you put that much back into it.Then you still have some energy left over, so you take that part and use it to heatyour house, or pump water out of the well, or generate electricity to light your Christmaslights, or sell it. You'd never need to buy any more energy, or burn any coal or oil orwood or uranium, because you'd get enough out of the machine to keep it runningplus more energy to use or sell.
Why does Pascal's principle provide a way to get more energy from a machine than is put into it?
IT CERTAINLY DOES NO SUCH THING! You can't get more energy out of a machine than you put in, except in the short term. (If some energy happens to be stored in a machine, you can get it out.) Such a thing would violate the Law of Conservation of Energy, which seems to be a fundamental law of nature. No violation of this law has been found so far!Pascal's principle allows to increase the output FORCE compared to the input FORCE, but you must be careful not to confuse FORCE with ENERGY. (They don't even have the same units. Energy is related to work, and work is, basically, force x distance.)
Why is a perpetual motion machine not possible?
It's not possible because it would violate one or both of the laws of thermodynamics. The first law of thermodynamics says that you can't create energy from nothing, or to out it another way, you can't get more energy out of a machine than you put into it. The second law says that no machine is 100% efficient. You must actually get less energy out of a machine than you put into it. The laws of thermodynamics apply to the entire universe and all bodies within it, including alleged perpetual motion machines.
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.
What is perpatual motion?
It is the idea of a machine continuously producing energy, without energy input - or producing more energy than what is put into the machine. This would violate the First Law of Thermodynamics (conservation of energy), and in general, it is not believed to be possible. No process is known which violates the conservation of energy. (A "perpetual motion machine of the second kind" would violate the Second Law of Thermodynamics; this is generally believed to be impossible, too.)
The comparison between output work imput work is?
Work input is how much work you put into a machine and work output is the work done by the machine according to how much work you put into it. You will never get more work out of a machine than you put into it. The efficiency of a machine is how much useful work you got out of the machine compared to how much you put in (expressed in a percent). Efficiency = Useful Work Output ÷ Work Input
How do you find the efficiency of a simple machine?
The efficiency of a machine is found by considering the useful energy or work that comes out of it, and dividing this by the work that you put into it. Multiply by 100 to get the answer in terms of percentage. You should never get more than 100% efficiency, or 100%, since energy will be lost (to heat caused by friction for example).
