Research suggests that there are different types of psychological factors that arouse individuals to act towards meeting a desired goal. Psychologists distinguish between intrinsic and extrinsic motivations. Define intrinsic and extrinsic motivation and give an example of each type of motivation in the context of reading a book.

Intrinsic motivation is the motivation to do an act for its own sake. For example, reading a book because you enjoy the material and what you learn from reading is an intrinsic motivation.
Extrinsic motivation is based on the reinforcements and punishments that the act may bring. For example, reading a book because your parents give you $5 for each book that you complete is an extrinsic motivation.