List the following four activities in the order they would go in the physical activity pyramid from top to bottom. Soccer practice; Homework; Walking 30 minutes to school; Weight training
The Physical Activity Pyramid: Top level of pyramid is Sedentary activities, Second level is Anaerobic and Flexibility activities, Third level is Aerobic activities, and bottom level is Lifestyle activities.

The goal of this experiment was to answer the question, "how does diffraction occur? " suppose you formulated this alternate hypothesis: if the gap width is increased while keeping wavelength constant, then the observed diffraction will decrease because the less the ratio between wavelength and gap width is, the smaller the observed diffraction angle will be. to test this hypothesis, you would change the  gap widthdiffraction anglewavelength  and observe the  gap widthdiffraction anglewavelength  in the system. therefore, the independent variable would be the  gap widthdiffraction anglewavelength  and the dependent variable would be the  gap widthdiffraction anglewavelength.