Question

22 fill in the blank 1 point in a longitudinal wave, the disturbance in the medium moves up and down as the wave moves left or right.

Explanation:

The description matches a transverse wave, where the medium's disturbance is perpendicular to the wave's direction of travel (up/down vs. left/right motion). Longitudinal waves have disturbances parallel to the wave's direction.

Answer:

transverse