Answer the following question given this paragraph: 

Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. The types of interactions are reflection, refraction, and diffraction. Each type of interaction is described in detail below. You can see animations of the three types at this URL: http://www. acoustics. salford. ac. uk/schools/teacher/lesson3/flash/whiteboardcomplete. swf .


Q: Reflection, refraction, and diffraction are examples of what type of interaction?


A:
waves