What might be some criteria and constraints for designing a roller coaster?

There must be at least one hill, one loop AND one turn. Your roller coaster also needs to be safe for the public.



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The problem: Even the slightest imperfection in track alignment can cause excess physical strain on riders' bodies. A roller coaster that cannot be ridden - that has to be a builder's worst nightmare. Safety is the top priority. Nonetheless, designers strive to provide riders with new and greater thrills.

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Most importantly, the coaster must have enough speed to travel all the way through the loop without stopping. Originally, engineers designed round loops. However, just as a coaster loses kinetic energy, expressed as speed, as it travels up a hill, it also loses speed near the top of a loop.

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Roller coasters are driven almost entirely by basic inertial, gravitational and centripetal forces, all manipulated in the service of a great ride. Amusement parks keep upping the ante, building faster and more complex roller coasters, but the fundamental principles at work remain the same.

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Potential and Kinetic Energy It helps the car's weight maintain momentum as it flies down the track. Other forces try to diminish that energy, such as friction and air resistance, but engineers design coasters to be resilient against these factors.

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Gravity, inertia, g-forces, and centripetal acceleration give riders constantly changing forces which create certain sensations as the coaster travels around the track.

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Unfortunately, visitors who ride roller coasters can walk away from these rides dizzy, nauseous, and possibly even severely injured. Some riders experience headaches and brain injuries from banging their head backwards or side to side on over the shoulder restraints.

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A roller coaster is a machine that uses gravity and inertia to send a train of cars along a winding track. The combination of gravity and inertia, along with g-forces and centripetal acceleration give the body certain sensations as the coaster moves up, down, and around the track.

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Roller coasters are driven almost entirely by inertial, gravitational, and centripetal forces. There are three main components to the typical roller coaster: chain lift, catapult-launch lift, and the brakes. The chain lift is the component that pulls all the carts to the “top” of the roller coaster.

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06 September 22 - 5 Interesting Facts About Roller Coasters
  • The First Roller Coaster was Built in 1817. ...
  • Britain's Oldest Surviving Roller Coaster was Built in 1920. ...
  • There are More Than 2,400 Roller Coasters in the World Today. ...
  • Roller Coaster are Among the Safest Rides. ...
  • Roller Coaster Loops are Never Perfectly Circular.


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Most roller coasters run by the Law of Inertia. Since an object at rest stays at rest, all roller coasters have to be pushed or pulled to get started.

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