Responses
They reduce the amount of force needed to move an object to do the same amount of work.
They reduce the amount of force needed to move an object to do the same amount of work.
They magnify the force being applied, thereby decreasing the work they can do with no extra energy exerted by the person using the machine.
They magnify the force being applied, thereby decreasing the work they can do with no extra energy exerted by the person using the machine.
They increase the distance over which a force is needed, doing more work with less force.
They increase the distance over which a force is needed, doing more work with less force.
They decrease the distance needed between a person and an object, allowing the person to apply more force and do more work.
1 answer
The correct response is:
They reduce the amount of force needed to move an object to do the same amount of work.
Simple machines, such as levers, pulleys, and ramps, allow a smaller input force to be used over a greater distance, making it easier to perform tasks that would otherwise require a larger force.
