
B1-5-2簡諧運動
Authored by 來加 以
Physics
11th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
把鼻是隻貓,牠正進行SHM之思想實驗:牠沿x軸作簡諧運動,若把鼻位置與時間的關係為 x=8cos[(πt/4) + (π/3)]cm,式中t以s計,則把鼻的最大速率為多少cm/s?
0.8π
1.2π
1.6π
2.0π
2.4π
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
妞妞是一隻貓,牠在x軸上進行振幅為R、週期為T的SHM思想實驗,當妞妞距平衡點的距離為(3/5)R時,其加速度的量值為何?
-(12π²R)/(5T²)
-(16π²R)/(5T²)
-(3π²R)/(5T²)
-(4π²R)/(5T²)
-(5π²R)/(4T²)
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
小齊同學為了量測講桌高度,將一條無質量的細繩,裁剪成與講桌相同高度,並在細繩下端黏上一塊鋼珠,使鋼珠作小角度的單擺。若小齊利用手機測得鋼珠的擺動週期為5 s,則講桌高度約為多少m?(令重力加速度量值為10 m/s²;π² = 10)
1
2.25
6.25
0.25
9
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
哈奇是條狗,牠正在進行一個簡諧運動思想實驗,假設哈奇的振幅為R,最大加速度量值為a,則由平衡點算起,1/2週期內的平均加速度值為何?
0
πa/2
2a/π
(π/2)[√(R/a)]
(2/π)[√(a/R)]
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
不計所有摩擦力及空氣阻力,桌面上有一質量為2.5 kg的鋼體,已知此球在桌面上不同的位置時,會受到不同大小及方向的力之作用,其所受合力與位置關係如圖所示。若在某時刻此鋼體在位置=8 m的地方且速度恰為0。試問再經π 秒後此鋼體的速度量值為多少m/s?
0
8
π
8/π
8π
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