What is one advantage of using simple machines in everyday tools?

One significant advantage of using simple machines in everyday tools is that they can make work easier by multiplying force. Simple machines, such as levers, pulleys, and inclined planes, are designed to help users perform tasks with less effort than would be required without them. For instance, a lever allows a person to lift a heavy object by applying a smaller force over a longer distance, effectively amplifying the input force to achieve the desired output. This ability to multiply force is crucial for making various tasks more manageable, especially when dealing with heavy loads or awkward angles.

The other options do not reflect the primary advantages of simple machines. For example, they do not always result in higher costs; in fact, many simple machines are quite affordable and can be made from readily available materials. Additionally, while they can reduce the effort needed for a task, they do not eliminate the need for human effort entirely; instead, they optimize the efficiency of that effort. Finally, increasing friction is typically undesirable because it would make tasks more difficult, when the goal of using simple machines is often to reduce resistance and make work easier.