What is the significance of the term "G-force" in roller coasters?

The term "G-force" refers to the acceleration that riders experience while on a roller coaster, which is expressed in units of gravitational force (G). It indicates how much the acceleration during various parts of the ride varies from the normal gravitational force experienced at rest.

When a roller coaster goes through loops, sharp turns, or quick drops, the G-forces can increase or decrease dramatically, causing sensations ranging from weightlessness to a feeling of being pushed into the seat. Higher G-forces can enhance the thrill of the ride, while managing the levels of G-force is crucial for rider comfort and safety.

Understanding G-force is essential for both roller coaster design and rider experience, as it directly affects how intense the ride feels. This knowledge also helps riders to prepare for the physical sensations they will experience during their ride.