This item is an interactive tutorial for high school physics/physical science on wave properties. It explores wave amplitude and how it is related to the amount of energy transported by the wave disturbance. A question-and-answer sequence is provided at the end, allowing students to independently measure their own understanding. This resource would also be appropriate content support for K-8 educators planning a unit on waves. This item is part of The Physics Classroom, a web-based collection of tutorials for high school physics students.