How Machines Make Work Easier

In the simplest way, machines are something that helps us do work easier. They amplify amount of force being applied to an object or system. So if i pushed a wheelbarrow 20 feet over a certain period of time, that would be work; but actual pushing against the wheelbarrow itself is force. Machines can changete the dynamics of force and distance in interesting ways. Sometimes its ways that might seem counter intuitive to you.