MM Pop Science | Projectile Lab

How It Works: The Science of Flight

Imagine you're throwing a baseball. Once it leaves your hand, it becomes a projectile. Even though it seems like it's moving in one smooth curve, its motion is actually made up of two different parts working together at the same time: horizontal (side-to-side) and vertical (up-and-down).

1. Side-to-Side (Horizontal Motion)

In a perfect world (without air drag), nothing pushes or pulls the ball sideways once it's in the air. It just wants to keep going at the same speed! We can calculate how far it goes sideways using this simple formula:

2. Up-and-Down (Vertical Motion)

This is where gravity comes in. As soon as you let go, gravity starts pulling the ball toward the ground. It slows down as it goes up, stops for a tiny fraction of a second at the very top, and then speeds up as it falls back down.

The "Parabola" Shape

When you combine these two motions, you get a special curve called a parabola. In this lab, you can see how changing the gravity of different planets affects this curve. On the Moon, gravity is much weaker, so the ball stays in the air longer and travels much further than it would on Earth!