What effect does pushing the control yoke back have on the aircraft?

Pushing the control yoke back directly manipulates the aircraft's elevator control surface. When the yoke is pulled back, it causes the elevator to deflect upward. This upward movement of the elevator increases the angle of attack of the horizontal tail, which generates additional lift at the tail and causes the nose of the aircraft to pitch upward. This aerodynamic response enables the aircraft to climb or increase its pitch attitude relative to the horizon. Understanding this concept is vital for pilots, as it helps them manage the aircraft's attitude and performance effectively during various phases of flight.