between the wheels of the car and the track
centripital motion, gravity, friction, ect.
Thermal energy is heat. Heat is associated with motion (like a roller coaster) because of friction. Friction slows down the speed of an object and changes some of its kinetic energy into heat.
Gravity and Friction
liquid
yes; wherever the coaster touches the tracks there is static friction pressing against it and it pressing against the tracks, thus keeping it from flying off.
Upside down.
a roller coaster that's made from wood of course duhhhhhhh..... sike naw im just kidding a wooden roller coaster conducts more heat than a steel roller coaster because it has more rough edges and that creates more friction and that makes heat. o a wooden roller coaster conductes more heat than a steel roller coaster does.
Friction, slows the roller coaster down to a slow enough pace that it eventually stops.
the two forces are friction and gravity
Kinetic Energy.
Kinetic or centrifugal, depening what phase you are on.
it's periodic motion.