becese it is
The work input for a machine is the amount of energy or force that is put into the machine in order to make it operate. It is the energy that is required to do work on the machine and make it perform its intended function.
mechanical efficiency
No, the work output of a machine cannot be greater than the work input. According to the law of conservation of energy, the total amount of energy remains constant in an isolated system, meaning the work output of a machine cannot exceed the work input.
A machine that changes the direction or amount of force needed to do work is known as a "simple machine." Simple machines include tools like levers, pulleys, and gears that help make work easier by either amplifying or redirecting forces.
there is more work needed to operate a machine then the work the machine does its self is because the machine has to be told how to do things the right way. therefore people need to tell it how to do the correct thing. the more work the people do, the more work the machine does, so you could say its almost equal. ======================================== Very nice but, unfortunately, unclear on the concept. Instead of "work", let's say "energy". They're the same thing, but it might help me get the point across better. A machine can't 'make' energy. All the machine can do is take the energy you put into it, and change it to a more convenient form in order to do what you need done. But it turns out that you must always put more energy into the machine than the useful energy that comes out of it. That's because some of the energy is always lost in the process of operating the machine ... on account of friction, air resistance, unintended heating ... things like that. We do everything we can to make the loss as small as possible, so that we don't lose too much of the energy that we paid for. We do things like using grease, oil, and roller bearings to reduce friction between machine parts, using thicker wire in an electrical circuit to reduce its resistance, and streamlining cars and airplanes to reduce air resistance. We've learned to reduce the losses quite well, but we can never completely eliminate them.
The work input for a machine is the amount of energy or force that is put into the machine in order to make it operate. It is the energy that is required to do work on the machine and make it perform its intended function.
By reducing the amount of energy needed to preform an action
The energy that is used to make the machine work.
Because some of the energy (work) is converted to heat as the parts of the machine rub against each other.
kiran ben
Energy
mechanical efficiency
No, the work output of a machine cannot be greater than the work input. According to the law of conservation of energy, the total amount of energy remains constant in an isolated system, meaning the work output of a machine cannot exceed the work input.
A machine that changes the direction or amount of force needed to do work is known as a "simple machine." Simple machines include tools like levers, pulleys, and gears that help make work easier by either amplifying or redirecting forces.
there is more work needed to operate a machine then the work the machine does its self is because the machine has to be told how to do things the right way. therefore people need to tell it how to do the correct thing. the more work the people do, the more work the machine does, so you could say its almost equal. ======================================== Very nice but, unfortunately, unclear on the concept. Instead of "work", let's say "energy". They're the same thing, but it might help me get the point across better. A machine can't 'make' energy. All the machine can do is take the energy you put into it, and change it to a more convenient form in order to do what you need done. But it turns out that you must always put more energy into the machine than the useful energy that comes out of it. That's because some of the energy is always lost in the process of operating the machine ... on account of friction, air resistance, unintended heating ... things like that. We do everything we can to make the loss as small as possible, so that we don't lose too much of the energy that we paid for. We do things like using grease, oil, and roller bearings to reduce friction between machine parts, using thicker wire in an electrical circuit to reduce its resistance, and streamlining cars and airplanes to reduce air resistance. We've learned to reduce the losses quite well, but we can never completely eliminate them.
The moving parts of a machine have kinetic energy, which is the energy associated with their motion. This energy is the result of work being done to make the parts move and is typically used to perform mechanical tasks within the machine.
The work done by a machine is the output energy provided by the machine in an intended task, while the work done on a machine is the input energy required to operate the machine. The work done by the machine should ideally be greater than the work done on the machine to ensure efficiency.