A drive apparatus according to an embodiment includes a first rotation unit, a base, a lead screw unit, and a second rotation unit. The first rotation unit includes a gear rotatable in first directions by a drive power source. The base is joined to the gear and is rotatable in the first directions with the gear. The lead screw unit is provided to the base and moves a shaft back and forth in a certain direction. The second rotation unit is pivotally supported by the base, rotates in second directions different from the first directions, and supports a certain supported member rotatably in the second directions.