プリンピキア

第13章波とその性質Waves and Their Properties原書 p.405–430

Key Terms重要語

antinode location of maximum amplitude in standing waves

定常波で振幅が最大になる場所

constructive interference when two waves arrive at the same point exactly in phase; that is, the crests of the two waves are precisely aligned, as are the troughs

強め合う干渉 二つの波がぴったり同位相で同じ点に届くこと。すなわち二つの波の山どうし、谷どうしがぴったり揃うこと

destructive interference when two identical waves arrive at the same point exactly out of phase that is precisely aligned crest to trough

弱め合う干渉 まったく同じ二つの波がぴったり逆位相で、すなわち山と谷がぴったり揃って同じ点に届くこと

inversion vertical flipping of a wave after reflection from a fixed end

反転 固定端からの反射のあと波が上下にひっくり返ること

longitudinal wave wave in which the disturbance is parallel to the direction of propagation

縦波 乱れが伝わる向きに平行な波

mechanical wave wave that requires a medium through which it can travel

力学的な波 伝わるのに

medium solid, liquid, or gas material through which a wave propagates

媒質 を必要とする波 媒質 波が伝わっていく固体・液体・気体の材料

nodes points where the string does not move; more generally, points where the wave disturbance is zero in a standing wave

弦が動かない点。より一般には、定常波で波の乱れが0になる点

periodic wave wave that repeats the same oscillation for several cycles and is associated with simple

周期波 同じ振動を何周期も繰り返し、単振動に 結びついている波