第六章 力 (61-63)
Quiz
•
Physics, Chemistry
•
KG
•
Practice Problem
•
Medium
劉于駿 劉于駿
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25 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
下列哪一個物體可以確定受到力的效應?
裂開或隆起的地表
停車格內靜止的汽車
冷凍庫中的冰塊
放在桌上的橡皮筋
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
彈簧適合用來測量力的大小,下列關於彈簧的敘述何者錯誤?
彈性佳
受力後長度的改變具有規則性
受力後長度的改變明顯
可以測量任何大小的力,不受限制。
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
下列哪一個物體並非處於平衡狀態?
一個水平平衡的天平,左右兩秤盤上有著不同形狀的物體
一艘靜止在水面的船
一個正在任意飄動的汽球
掛在天花板上的吊燈
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
兩力或數力合成,最少可產生幾個合力?
一個合力
兩個合力
無限多合力
不一定
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
一物體置於磅秤的上方,同時掛在一彈簧秤下,如附圖所示,已知磅秤的讀數為200公克重,彈簧秤的讀數為100公克重,且物體呈靜止不動,則物體的重量應為多少公克重?
100
200
300
400
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
有一物體重量為13 kgw,靜置於水平桌面上。若物體兩側分別施以在同一直線上的水平作用力20 kgw和15 kgw,發現物體仍靜止不動,如附圖所示,下列敘述何者正確?
該物體所受摩擦力的大小為5 kgw,方向為左
該物體所受摩擦力的大小為20 kgw,方向為右
)該物體所受摩擦力的大小為15 kgw,方向為左
該物體所受摩擦力的大小為13 kgw,方向為右。
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
下列何種作法有助於減少摩擦力?
鞋子底面的花紋
賽跑時穿釘鞋
輪胎表面的凹凸條紋
腳踏車的齒輪添加潤滑油。
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