Get ready to learn about pulleys! In this BrainPOP UK movie, Tim and Moby teach you all about these simple machines, which are among the most useful tools ever invented. In this educational, animated movie you’ll discover how pulleys are designed to reduce the amount of effort you have to expend in order to move a heavy object. You’ll find out about the concepts of resistance force and effort force and how they’re used in different pulleys. You’ll also learn about the components that make up a pulley and how, by using two of these devices, you could lift an object that weighs more than you do! You won’t have to expend much effort to watch this movie — so have fun!