1. Fill in the type of progressive wave next to the correct definition. (2 points) a. Interface waves that travel on the surface. __________________________ b. Push-pull waves that can travel through solid, liquid, or gas._______________________ c. Side to side waves that can only pass through solids._____________________________ 2. Label the following parts of a wave on the figure below: (3 points) a. Crest b. Trough c. Wavelength d. Wave Height e. Still Water Level f. Wave Base 3. How is the wave frequency calculated? _____________________ (0.5 points) 4. How is the wave steepness calculated? _____________________ (0.5 points)