1. amplitude 1 wavelength = 7 cm
amplitude 2 wavelength = 7 cm
2. frequency 1 wavelength = 1.5 cm
frequency 2 wavelength = 8.5 cm
3. The fact that the amplitude does not affect the size of the wavelength shows that the amplitude does not affect the energy of the wave. The frequency does affect the size of the wavelength though. This change in frequency relation with change of wavelength shows that the frequency affects the energy of the wave.
4. wavelength of 2 drips = 7 cm
I couldn't figure out how to get the red and yellow dots to show up as you had them in the picture.