The washing machine includes a rotating tub arranged to be rotatable about a shaft. A first mass member is mounted to the rotating tub so as not to be moved relative to the rotating tub in a circumferential direction of the rotating tub. The first mass member serves to apply load imbalance to the rotating tub upon rotation of the rotating tub. Also, a second mass member is arranged to be movable in the circumferential direction of the rotating tub. The second mass member serves to compensate for load imbalance of the rotating tub upon rotation of the rotating tub.