Straightaway tracks challenge us to make sure the track rails are running perfectly straight in linear motion. Make sure the rails are level with each other and parallel to each other.
In today's lesson we will build a track that carries a marble in circular motion around a U-turn. The tighter the radius of the turn, the higher the bank will nee to be to keep the marble on the track.
In this lesson we will build a track that launch a marble in trajectory motion off the end of the track into a container. The record is 17.5 inches in flight.
Friction causes object to slow down. The marble encounters "friction lost" when the track is not flat or the track rails are uneven with each other.
Raising the outside rail provides centripetal force, which is constantly push the marble towards the center of the center of the circle, keeping it on the track.
As the marble takes flight in projectile motion, velocity and momentum compete against the downward gravitational force on the marble, causing it go in an arching parabolic
This 46 piece DIY marble track kit will get you started. The picture gives you a good idea of how big a track you can build and the 1,000's of variations.
This 165 piece DIY kit is perfect for a Makerspace at the library or school. Groups of 3 to 6 are able to make 10,000 different marble tracks.