Concept:Understanding the types of motivation based on the source of drive.Explanation:Padmaja is doing her homework not because she enjoys it, but because she fears her teacher's disapproval if she doesn't. This means her motivation comes from an external factor (the teacher's potential dislike) rather than an internal interest in the task itself. This type of motivation, driven by external rewards or punishments, is called extrinsic motivation.Answer:Extrinsic