What type of serve is executed with an overhead motion and usually involves more power?

The jump serve is characterized by an overhead motion that allows players to generate significant power and velocity. This type of serve involves the server tossing the ball into the air, jumping, and then striking the ball at its highest point. The overhead motion coupled with the player's upward momentum can create a fast, aggressive serve that is difficult for opponents to receive.

In contrast, the underhand serve tends to be less powerful and is executed without the elevation that comes from jumping. The floater serve does not have as much speed or spin and relies on a different technique aimed at confusing the receiver. Similarly, the sidearm serve, while variable in execution, does not typically achieve the same explosive power as a jump serve. Therefore, the jump serve stands out due to its combination of overhead technique and the additional force derived from the player's jumping motion.