Not only is it a compound machine (a device that uses a number of simple machines), it relies on one primary simple machine, the lever, to launch a projectile. The trebuchet is a classic example of ancient engineering design. This engineering curriculum aligns to Next Generation Science Standards ( NGSS). They test their trebuchets, evaluate their results through several quantitative analyses, and present their results and design process to the class. Students work as teams of engineers and research how to design and build their own trebuchets from scratch while following a select number of constraints. In this activity, students explore how trebuchets were used during the Middle Ages to launch projectiles over or through castle walls as well as how they are used today in events such as Punkin’ Chunkin’.
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