More Catapult Design IdeasĬan you build a giant catapult? We used this one to launch tennis balls over a net. If you want to learn more about Newton’s Laws of Motion, try our film canister rocket. The further you push the catapult arm down ( which takes more force from you ) the further the ball will travel. If you push the catapult arm down further you are storing more elastic potential energy which means more kinetic energy is transferred to the ball when you release it. Catapults and conservation of energyĪ lolly stick catapult demonstrates energy being converted from one type to another ( potential to kinetic ) and transferred from one object to another ( catapult arm to the ball ). When you pull down on the catapult arm, elastic potential energy is stored, when you release the catapult arm the potential energy changes to kinetic energy ( energy of motion ) which is transferred to the object which then flies through the air. Newton’s First Law states that an object stays at rest until a force is applied to the object. Make sure you check out the video above to see how you can make your own rubber band and popsicle stick catapult or if you prefer, read on for written instructions below What you’ll need to make your lolly stick launcher. See who can score the most with a set number of balls. Set a challenge to find out how far you can make a ball travel! Add some mathsĬreate a target with different numbers in different areas and use the lolly stick catapult to fire balls at the target. Investigate to find out if a heavier ball travels further. Try adding extra or fewer sticks to the central part of the catapult. Remember to only change one variable at a time Change the design Popsicle Stick Catapult Investigation Ideas
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