2014 AP Physics 2 Algebra-based Practice Exam Free-Response Questions Free Download
2014 AP 物理2模考简答题部分免费下载
此套题仅 Section II含有简答题，
4）The figures above labeled X, Y, and Z represent plane waves of the same wavelength incident on barriers that have openings of different sizes. Also shown are the shapes of the wave fronts beyond the barriers.
- One model of waves treats every point on a wave front as a point source. Give a clear, coherent, paragraphlength description of how this model can be used to explain the shape of the wave fronts beyond the barriers.
The figure above represents another plane wave incident on a barrier with two identical openings, creating an interference pattern on the wall. Some positions in the pattern on the wall are labeled.
- In a few sentences, describe how the point-source model described in part (a) and the figure above can be used to explain the formation of the interference pattern on the wall.
- On the axes below, sketch the intensity of the waves that are incident on the wall. The labels correspond to the positions noted in the figure above.
2014 AP Physics 2物理2 Algebra-based 模考FRQ简答题完整版答案免费下载