Final answer:
Simple machines make work easier by reducing the input force required and increasing the distance over which the force is applied.
Step-by-step explanation:
A simple machine makes work easier by reducing the input force required to perform a task. It achieves this by increasing the distance over which the reduced force is applied. For example, a lever allows you to apply a smaller force over a longer distance to lift a heavy object.
By reducing the force required, simple machines can help humans perform work more effectively and efficiently. However, they do not change the overall amount of work done, as the product of force and distance remains constant. Instead, their role is to change the amount of force and distance needed to perform the work.