the gravity will pull the roller coaster down a little bit and then it might go a little slower.
yes
Roller coaster's doesn't take the place of anything but it shows possession. Example: roller coaster's design
It is present everywhere.
Gravity and Friction
electricity and gravity
It would not move
Gravity.
No, the roller coaster is not the only example of a closed energy system.
Gravity
A rollar coaster is a good example of electricitiy because on a roller coaster its easy to see where POTENTIAL and KINETIC energry fall.
Gravity Pleasure Switchback Railway
It depends on which type of roller coaster. Some of then use a magnet to get their speed. Other use a pressure, or they just let gravity do all the work.
gravity and momentum