本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 IB物理学
[问答题]
Why can you make water svimn0,u3rv .r ndwq:egfj9 82n)tjd (lobj5e0 l rdquefu8 x7imupf-*3h;+v r9sh back and forth in a pan only if you shake the pan at a certain frequency?x *0 r9iu-f8eruvq f;7lm5dhbp+j3 ue
参考答案:
To make the water “slosh”, you must shake the water (and the pan) at the natural frequency for water waves in the pan. The water then is in resonance, or in a standing wave pattern, and the amplitude of oscillation gets large. That natural frequency is determined by the size of the pan – smaller pans will slosh at higher frequencies, corresponding to shorter wavelengths for the standing waves. The period of the shaking must be the same as the time it takes a water wave to make a “round trip” in the pan.
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