In this lab students will PROVE that the horizontal velocity of a projectile does not change as it is flying through the air. They will calculate the horizontal velocity of the projectile while on a table and then compare it to when the projectile was in the air.
The only materials you need for this lab are some kind of projectile (marble, tennis - ball etc.) and a makeshift ramp. You can use CPO timer equipment if you wish or a simple tape measure and timer.