Table of Contents
Does work input equal work output?
That is, a small input force can accomplish a task requiring a large output force. But the constraint is that the small input force must be exerted through a larger distance so that the work input is equal to the work output.
Can you make the work output of a machine greater than the work input?
The only way to increase the work output is to increase the work input. You can’t get more work out of a machine than you put into it. The moving parts of a machine must use some of the work input to overcome friction. Because of friction, the work output of a machine is always less than the work input.
How does the work output of a machine compare to the work input Why are they different?
A comparison of a machine’s work output with the work input. The work output of a machine can never be greater than the work input. In fact, the work output of a machine is always less than the work input due to friction. Mechanical efficiency tells you what percentage of the work input gets converted into work output.
Why is the output energy of a machine always less than the input energy?
Although nearly equal, the output work is less than the input work because of friction. All machines use some amount of input work to overcome friction. The only way to increase the work output is to increase the amount of work you put into the machine. You cannot get more work out of a machine than you put into it!
What is impossible for a machine to do greater amount of work than the amount of work done on the machine?
(1) the object moves as a force is applied and (2) the direction of the object’s motion is the same as the direction of the force. a quantity, usually expressed as a percentage, that measures the ratio of work output to work input in a machine (The work output of a machine can never be greater than the work input.
What is the work output of a machine?
Work Output of a Machine The force exerted by a machine is called the output force. The distance the output force is exerted through is the output distance. The work output of a machine is the output force multiplied by the output distance.