Q: Will your phone fall out of your pocket on a roller coaster? A: Depending on the design of the pocket, it might. But not on most regular roller coasters as they always put positive Gs on the riders. But on roller coaster that provide negative Gs (airtime) they might be lifted out of your pocket.

There is a very high probability that your phone will fall out of your pocket on a roller coaster if it is not properly secured, especially on rides with inversions, high-speed drops, or significant "airtime." Modern roller coasters generate intense G-forces that can easily overcome the friction of a standard pocket. Most major theme parks, such as Disney, Universal, and Six Flags, have strict policies against loose items and often provide lockers—sometimes mandatory and free for the duration of the ride—to prevent injuries. A falling phone becomes a "kinetic projectile" that can seriously injure another rider or damage the ride's machinery. If you must keep your phone on your person, it should be in a zippered or buttoned pocket, or secured in a cross-body bag that remains attached to you. Never attempt to take a "selfie" or record video while the ride is in motion; not only is it dangerous, but it is also one of the leading causes of phone loss and can result in you being removed from the park without a refund.