本题目来源于试卷: Vibrations and Waves，类别为 IB物理学
[问答题]
Why can you make wat8or9ctfm2do j/wt - 6fer slosh bahiuob4l78 * 7lw91fxm5 in0gjikx(b bck and forth in a pan only if you shake the pan at a ceobl n7 bfii(*mj9ulbh1x i5kw47 x0g8rtain frequency?
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.
本题详细解析:
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