
B5運動學+能量篇-2
Authored by 大溪天龍 大溪天龍
Physics
6th Grade
Used 1+ times

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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
41. 如圖為馬桶儲水槽的「部分裝置」示意圖,其中活塞因受到水的壓力而將出水口堵住,AOB 為槓桿裝置,A 點(轉鈕)為施力點,B 點為抗力點。當壓下轉鈕時,堵住出水口的活塞被拉起,使得槽內的水沖入馬桶中。下列有關轉鈕設計的敘述,何者正確?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
42. 如圖所示,Fa、Fb、Fc 三力同時垂直向下作用於細桿,且此細桿達到力矩平衡。假設細桿的重量不計,且細桿與支點的摩擦力可忽略不計,則此三力大小之間的關係,下列何者正確?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
43. 一個質量為 5 公斤的物體作直線運動,其速度(v)與時間(t)的關係如圖所示。關於此物體運動的敘述,下列何者正確?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
44. 如圖是小明騎腳踏車經早餐店上學的路線圖,小明家到早餐店的直線距離是 2 公里,早餐店到學校直線距離是 1 公里。若小明騎腳踏車上學需時 20 分,則下列有關小明上學的敘述,何者正確?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
45. 一個質量為 2 公斤的物體在光滑水平面上同時受到甲、乙、丙三力作用,如圖所示,甲力水平向左 10 牛頓,乙力鉛直向下 3 牛頓,丙力水平向右。三力作用期間,物體水平向左移動 3 公尺,合力對此物體共作功 24 焦耳,則丙力的大小為多少牛頓?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
46. 物體作直線運動,因它受到一個力 f 的作用,使其速率逐漸變慢。關於此運動中各物理量的敘述,下列何者正確?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
47. 甲、乙兩個質量同為 1 kg 的木塊靜置於水平桌面上,兩木塊分別受水平外力作直線運動,其速度(v)與時間(t)的關係如附圖所示。若 t=25 s 時,甲、乙兩木塊所受的合力分別為 F甲、F乙,則 F甲:F乙 應為下列何者?
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