Responses
Simple machines always reduce the force needed to do move a load.
Simple machines always reduce the force needed to do move a load.
Simple machines always increase the distance that force is applied to do work.
Simple machines always increase the distance that force is applied to do work.
Simple machines do not change the amount of work done.
Simple machines do not change the amount of work done.
Simple machines increase the amount of work done.
1 answer
The correct statement about simple machines is:
Simple machines do not change the amount of work done.
This statement reflects the principle of conservation of energy, where the work input equals the work output, assuming no friction or losses. Simple machines may allow you to use less force over a greater distance or change the direction of force, but the total amount of work done (force times distance) remains the same.
