Bean Catapult

Affiliation: Instituto Politécnico do Porto
Resolution: Individual | Duration: Less than an hour



The objective of this activity is to design and build a catapult with every day materials that is precise enough to hit a target with a bean (or a pee, etc.).

Learning Objectives

After the activity, students will be able to: - Understand projectile forces - Apply technological design in solving a problem - Be familiar with scientific inquiry


Catapults and similar devices apply the physics of projectiles to throw objects at a large distance. Used most of the times for military purposes, catapults allowed to breach strong defences therefore allowing the entrance of the attacking armies.