Final answer:
A categorical imperative refers to universal moral laws that must be followed, while a hypothetical imperative is a subjective rule used to achieve specific goals. An example of a cultural imperative is not addressing someone by their first name when meeting them in Germany.
Step-by-step explanation:
A categorical imperative refers to universal moral laws that we must follow regardless of our desires, as explained by Immanuel Kant. These imperatives are derived through reason and are considered to be moral duties that apply to all rational beings. They are different from hypothetical imperatives, which are subjective rules that we follow to achieve specific goals. An example of a cultural imperative would be the cultural norm of not addressing someone by their first name when meeting them in Germany.