• The goal of our project was to make a contraption
that allowed a marble to run through several
obstacles in 15 seconds without stopping until the
end.
• We found or made most of the materials from around
the house and bought the tubing, funnel, dowels and
foam base.
• We decided on The Chugger, after we already bought
the funnel, while watching Old School.
• A steel ball bearing begins in a funnel and
travels through a winding, twisting tube onto the
“liquor luge” where it proceeds through more
spiraling tube.
• It then jumps into the beer stein traveling
downward, going through one more tube into
our TA’s mouth.
• Ball
– Gravitational Potential Energy to Rotational Kinetic Energy
• Funnel
– Provides basis for Rotational Kinetic Energy
• “Liquor Luge”
– Friction loss opposite of balls direction
• Beer Stein
– Gravitational Potential Energy to Kinetic Energy
• TA’s mouth
– Elastic Collision at end of run
• The construction of our coaster took approximately 10
hours. Our presentation and visuals consumed around
half the time of the coaster.
• Some problems we encountered were
– Keeping the ball in motion
– Limited space
– Aligning the tube correctly
• Our coaster ended up better then we hoped for when we
started.