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1-1
1-2
1-3
波動的性質
週期波
波的反射與透射
第一章 波 動
1-4
1-5
1-6
波的疊加原理與駐波
惠更斯原理
水波
搭配課本 P.4
手持彈性繩上下揮動,所
產生向前傳遞凸起的擾動
稱為脈衝波。
若持續規律上下擺動,則
繩上會出現連續週期性的
擾動,稱為週期波。
波形與波速
動畫-手持繩子上下振動向前傳播波動示意圖
搭配課本
將這種擾動形狀向外傳播出去的現象,稱為波動。
P.4
生活中常見的繩波
空間中的波動
波形與波速
動畫-波動
搭配課本 P.8
力學波與電磁波
搭配課本 P.10
波傳遞方向與介質振動方向:
• 波傳遞方向與介質振動方向
垂直
• 波傳遞方向與介質振動方向
平行
橫波(高低波)
縱波(疏密波)
橫波與縱波
搭配課本 P.48
「戰鬥繩」可用來訓練肌肉和核心肌群的爆發力和耐力,它被
廣泛應用於各類運動的健身項目中。健身房的館長將一條 16 m、
25 kg 的均勻戰鬥繩一端繫於牆壁,另一端施以 10 kgw 的力量
拉緊,並在施力處產生一個脈衝波。已知重力加速度量值為
10 m/ ,則:
(1) 戰鬥繩的線密度為多少 kg/m?
(2) 戰鬥繩上脈衝波的波速為多少 m/s?
(3) 脈衝波將在幾 s 後抵達牆壁?
2
s
波動的性質
答: (1)
25
16
答: (2) 8
答: (3) 2

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