3 Ways to Build a Basic Catapult
Introduction:
A catapult is a classic siege weapon that can launch projectiles with the help of a lever and a tension mechanism. These devices have been used for centuries in warfare, and they also make for an educational and entertaining DIY project. In this article, we will explore three methods to build a basic catapult at home using readily available materials.
1. Popsicle Stick Catapult:
Materials:
– Popsicle sticks (9)
– Rubber bands (5)
– Plastic spoon or bottle cap
– Small objects for launching (e.g., marshmallows, pom-poms)
Instructions:
- Stack five popsicle sticks and secure them together at both ends using rubber bands.
- Take one popsicle stick and slide it through the stack of five secured sticks, resting it on top of the bottom stick.
- Place another popsicle stick on top of the one you just inserted, aligning their ends.
- Secure the two loose sticks with another rubber band at their aligned ends.
- Attach the plastic spoon or bottle cap to the free end of the top popsicle stick using a rubber band.
- Load your small object into the spoon or bottle cap, pull back, and release to watch your catapult in action!
2. Plastic Spoon Catapult:
Materials:
– Plastic spoon
– Large binder clip
– Rubber bands
– Small objects for launching (e.g., marshmallows, pom-poms)
Instructions:
- Open the binder clip and attach it to the handle end of the plastic spoon.
- Securely wrap rubber bands around both ends of the binder clip’s arms to ensure extra support.
- Test your catapult by placing a small object in the spoon’s bowl, pulling back on the spoon handle, and releasing it to launch!
3. Paper Roll Catapult
Materials:
– Empty toilet paper or paper towel roll
– Rubber bands
– Pencil, pen, or wooden dowel
– Plastic spoon or bottle cap
– Tape
– Small objects for launching (e.g., marshmallows, pom-poms)
Instructions:
- Cut a small notch in the top of the paper roll about halfway across. This will serve as a support for the pencil, pen, or dowel.
- Insert the pencil, pen, or dowel through the hole you just created in the paper roll.
- Attach the plastic spoon or bottle cap to one end of the pencil using tape. Ensure it faces upward and outward.
- Wrap a rubber band around the paper roll and over the notched end of the pencil to secure it in place.
- Load your small object into the spoon or bottle cap, pull back on the pencil end, and release it to see your catapult launch!
Conclusion:
Building a basic catapult at home is a fun and engaging way to learn about physics and engineering concepts. Follow these three methods for constructing your own homemade catapults, and enjoy countless hours of educational entertainment!