Intro

During this project we constructed and launched a bottle rocket in order to investigate projectile motion. Projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. The object is called a projectile, and its path is called its trajectory.

Design Consideration

Wings and Fins

Most of the time, wings and fins are used for stabilization during the flight of an object. Think about a hand glider. What would happen to it if it didn’t have the wings?

Rounded Corners

What makes something more aerodynamic? Do sharp, boxy edges make something more aerodynamic, or do sleek, curved lines help reduce wind resistance on an object? Think about how new cars compare to older models. Given that we know more about drag and aerodynamic design now, how will you incorporate this into your rocket?

Nose Cone

On every rocket, plane, and space shuttle you see, you’ll find a nose cone. This cone is basically just a point on the top of the rocket. Like rounded corners, the nose cone reduces wind resistance. Since it’s at the top of the rocket, this helps the rocket fly higher and straighter than it would with a flat nose. Think about how you could design a nose cone for your rocket.

​Weight

If an object is too heavy, it will never leave the ground. It’s a simple concept, but pay attention to the weight you’re adding to your rocket when you attach materials. ​