Waves Fill-in Notes What is a wave? Complete this diagram in your packet. wavelength frequency amplitude crest top of a wave trough bottom of a wave medium period the time it takes for one oscillation to pass a fixed point; measured in seconds What are the two basic types of waves? Type 1: What are the two basic types of waves? Type 2: How are sound waves different than electromagnetic waves? Provide at least 3 differences How are speed, frequency and wavelength related? In other words, how can one find the speed of a wave?