What term describes the maximum height reached by a projectile?

The term that describes the maximum height reached by a projectile is "Apex." In the context of projectile motion, the apex is the highest point in the trajectory where the vertical component of the velocity momentarily becomes zero before the projectile begins to descend.

Understanding the concept of apex is essential in physics, particularly in kinematics, as it allows one to analyze the motion of objects that are influenced solely by gravity after they have been projected. At this point, gravitational forces are still acting on the projectile, but its vertical velocity has decreased to zero, which is a critical aspect when considering the time of flight and other parameters of projectile motion.