![]() This helps you aim the cotton ball forward. Here is a fun project you can do at home The other ends of the rubber bands need to be tied to the top part of the catapult, and two bottom corners. Pushing your six sticks the other direction creates a greater angle between the launching stick and the base. Automatic rubber band catapult step 1: How to build a rubber band catapult. This results in a cotton ball aimed more upward than forward. Moving the stack of six sticks closer to the launching cup makes the launching stick lie flatter. In the case of your catapult, the cotton ball probably flew higher and farther. Bending farther means more energy gets stored in the stick, and when you let go, all this stored energy is converted into energy of motion, so the cotton ball flies through the air at a higher speed. Maybe you felt you needed to exert more force or work harder to bend the stick farther. Pushing the stick down farther takes more effort from you. ![]() Most of this energy transfers to the cotton ball, which shoots through the air. When you let go, this energy is released and converted to energy of motion. The catapult works when the potential energy stored in a stretched rubber band is converted to kinetic energy when it snaps back to its loose shape, moving the. ![]() First of all, build a stack of five ice cream sticks. When you bend your stick, you load your launching stick up with energy. To make a catapult, you need ice cream sticks, rubber bands, a bottle cap, and glue. Do you get similar results each time? Is what you observe what you expected? Can you explain why?ĭid you see your cotton ball fly higher and farther when you pushed you launching stick farther down?
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