Final answer:
If a bearing noise gets louder when turning left, it is likely that the right bearing is bad. On the other hand, if the noise gets louder when turning right, it indicates a problem with the left bearing.
Step-by-step explanation:
If a bearing noise gets louder when turning left, it is likely that the right bearing is bad. When you turn left, the weight of the vehicle shifts to the right side, increasing the load on the right bearing. If the bearing is damaged or worn out, it will produce more noise when under increased strain. On the other hand, if the noise gets louder when turning right, it indicates a problem with the left bearing.