A gravity railway in which riders are sent along on a track powered only by sheer gravity, after an initial start, lift hill, catapult, etc An amusement park device
elevated railway in an amusement park (usually with sharp curves and steep inclines) anything characterized by abrupt and extreme changes (especially up and down); "the economy has been on a roller coaster all year
Funderstanding Roller Coaster This simulator is designed for students who want to design their own thrilling coaster and educators who want to use a cool activity to simulate the application of physics by using an exciting interactive tool and access to a wonderful reference source See also the outstanding Amusement Park Physics interactive site