Notes Guidelines Section 1.3 (Energy Transfer)

- [The first three points are either not important or repeated]
- Key Formula: E α f²A²
- (P α f²A²)
- (I α f²A²)
- [This is actually just one formula, not three. E, P and I are all proportional to f²A². However, you do need to know the relationship between E, P and I.]
- P = E/t
- I = P/Area
- What is the inverse square law, and when do you apply it?
- [Note: the inverse square law doesn't just apply to Intensity. It similarly applies to Power and Energy as well.]