地面上有一質量為2.5 kg的鋼球,已知此球在地面上不同的位置將受到不同的力作用,其關係如圖所示。若某個時刻此鋼球在位置8 m的地方且速度恰好為0。試問再經π s後此鋼球的速度量值為多少m/s?

0817

Quiz
•
Physics
•
11th Grade
•
Hard
栢川 林
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
0
2
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
一理想的彈簧下方鉛直懸掛質量為m的物體,當物體由彈簧的自然長度靜止釋放,平衡時彈簧伸長x。自平衡點物體向下拉x後再釋放,則物體振動的最大速率為何?(重力加速度量值為g)
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
作簡諧運動之物體,其位置與時間關係為 ,其中x的單位是m,t的單位是s,則由開始至平衡點須耗時多少s?
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
某一物體沿x軸作簡諧運動,若其位置與時間的關係為 cm,式中t以s計,則物體的最大速率為多少cm/s?
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
如圖為一質點作簡諧運動之位置(x)對時間(t)的函數圖,設向右為正,則:
時刻t1瞬間物體速度向左
時刻t1瞬間物體受力向右
時刻t6瞬間物體速度向右
時刻t6瞬間物體受力向左
時刻t2質點瞬時加速度量值最大
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
如圖所示,一個作等速圓周運動的物體,觀測其在直徑上投影的運動情形,發現物體的投影在直徑AB間來回運動,O為圓心,C為OA中點。關於物體投影的運動狀況,下列敘述何者正確?
物體的投影做等速率SHM
由A到B物體的投影之速率逐漸減小
由A到O與由O到B,物體的投影之平均速率相同
距O等遠處,物體投影的加速度相等
物體的投影由A到C與由C到O,所需的時間相等
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
一物作簡諧運動,振幅為R。由平衡點移動 的距離與自端點移動 的距離所需的時間比為何?
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