Beakman defines machines and acts like Archimedes to explain why a screw is a machine. He illustrates how he used a screw mechanism to remove water from a container to reduce the amount of work required to complete the task. Beakman then explains more about mechanical advantage and simple machines like the inclined plane.
Sophie illustrates the six basic simple machines that exist and explains how they are useful in our everyday lives. She defines force and work and mentions that simple machines reduce the amount of work required for a task.
Jerry's car is broken and he takes it to a new mechanic. The new mechanic gives an estimate that Jerry believes is too high. George says, "Of course they're trying to screw you—that's what they do. It's because you don't know anything about what's going on under there!" George also says that Putty, Jerry's regular mechanic, wouldn't try to screw him. Reputation for honesty can overcome moral hazard problems.