A simple machine science activityThere’s one more factor you have to consider when using a pulley—friction. An “ideal” pulley—the kind you see in a physics textbook or homework problem ...

Throughout history, humans have developed several simple machines to make work easier. The most notable of these are known as the "six simple machines": the wheel and axle, the lever, the inclined ...

Learn how pulleys, levers and gears can be used to lift and move heavy loads with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.