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By simple machines, I assume you mean machines powered by muscle but using leverage such as levers, screws, block and tackle devices. Is that what you mean? If so, these devices increase something called "mechanical advantage".

Start with levers. The usefulness of a lever depends on where the fulcrum is placed. If the fulcrum is in the centre of a lever such as with a see-saw, there is no mechanical advantage at either end. That's why kids of similar weights can suspend the kid on the other end of the see-saw up in the air just to be rascals. Now if the fulcrum is closer to one end than to the other, the person farther from the fulcrum can exert more force than the person closer to the fulcrum. Think of a crow bar. One inserts an inch or two of the bar at the point where one wants to apply force. Pushing on the other end of the bar (perhaps two, three, four feet away) exerts a lot of force at the other end. The same effect allows you to lift a car with a jack. You push down a foot on the jack handle and the jack platform rises perhaps half an inch.

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12y ago
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15y ago

Simple machines either reduce the amount of force required be increasing the distance traveled or reduce the distance traveled be increasing the force required. Depending on the application both of these my make work easier.

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12y ago

A simple machine makes the job "easier" because it reduces the necessary force.

But you pay for it by exerting the smaller force through a greater distance. So the

product of (force) times (distance) doesn't change, and that product is exactly

the scientific definition of "work".

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13y ago

Yes. By definition a simple machine reduces the direction and or magnitude of a force. Since Work = Force • Distance, when the simple machine reduces Force, it also reduces Work.

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Q: Do simple machines reduce the amount of work?
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Related questions

Describe how simple machines make work easier?

Simply put, a simple machine makes the work much easier. Simple machines reduce the amount of force needed to do the work. A pulley, for instance, is a great example of a simple machine.


How do simple machines make work about the same?

They do not. Simple machines reduce the effort used to do a task.


Do simple machines change the amount of work done?

No you still do the same amount of work


Does using machines reduce the total amount of work required to move an object or make it easier?

Yes. Use simple and compound machines always get things done faster and better.


Do simple machines change the amount of work being done?

No you still do the same amount of work


How can simple machines work easier?

They increase the amount of work over a longer period of time.


Why do simple machines do the same amount of work to complete a task as not using the simple machine?

Because the action requires the same amount of force.


If the machine cannot multiply the amount of work what is the advantage of using a machine?

A machine decreases the amount of force needed to work, as it distributes the force throughout a larger distance.


Why do you use simple machines such as levers?

Because less force is required to accomplish the same amount of work.


Do all simple machines either reduce the input force or increase the distance over which work is performed?

Simple machines will reduce the input force, but can allow you to travel farther distances. Your'e body is not putting in as much force, your body will allow you to do more work for a longer time....but yes,it decreases the input force.


Why simple machines called as simple machines?

it is called as simlple machines because it easy, simple,good handling, so it will do the work easier and complete the work easier...


How do you manipulate simple machines and make their parts work together?

simple machines are put together by connecting. for example, in cars. simple machines work together by putting their strength