What does 'output force' refer to in simple machines?

Output force in the context of simple machines refers to the force that the machine exerts on an object after the initial input force has been applied. When a force is applied to a simple machine, it is transformed in some way, allowing the machine to amplify that force. This amplification leads to a greater output force, which can move or lift heavier objects than what could be accomplished by the initial force alone.

In practical terms, when you use a simple machine such as a lever or a pulley, you exert a certain input force, and the machine then delivers a greater output force, making tasks easier to perform. Understanding this concept is crucial, as the efficiency and effectiveness of a simple machine depend on how it converts input force into output force, enabling the user to accomplish work with less effort.