本题目来源于试卷: Electromagnetic Waves，类别为 IB物理学
[问答题]
Is sound an electromagnetic 30)fj2zoun8. ussh mk4gba ,owave? Iya65rg1 i/qqp f not, what kind of wave is it?
参考答案: No, sound is not an electromagnetic
wave. Sound is a mechanical (pressure)
wave. The energy in the sound wave is
actually oscillating the medium in which it travels (air, in this case). The energy in an EM wave is contained in the
electric and magnetic fields and it does not need a medium in which to travel.
本题详细解析:
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