Instead of using a traditional method of a chain lift, many rides feature a launch that can accelerate rides to higher speeds and is considered a more thrilling and exciting method of energy transfer. These systems both use electromagnets to accelerate the trains down the track, but how do they work?

Many modern roller coasters are indeed electromagnetic, though the technology is primarily used for the "launch" and "braking" systems rather than the entire ride experience. Traditional coasters use a chain lift to build potential energy, but high-tech models use Linear Induction Motors (LIM) or Linear Synchronous Motors (LSM). These systems use powerful electromagnets on the track and metal fins on the train to create moving magnetic fields that propel the coaster from 0 to top speed in seconds. Electromagnetic systems are also used for braking, providing a smooth, frictionless stop. However, once the initial launch is over, most coasters rely on gravity and momentum to navigate the rest of the course, meaning the "ride" itself is a mix of advanced physics and classic kinetic energy.