1. Useful work is associated with the potential of a conservative force. Provide a definition of potential using only words and arguments that your (hypothetical) nine-year-old sister would understand. Provide at least three examples she could relate to.

2. The concept of a conservative force is central to defining useful work. Describe the differences between conservative and nonconservative forces using only words and arguments a cond-year college music major would understand. Provide examples of at least three forces of each type.