
南一國中自然2下_ch6-2

Quiz
•
Science
•
8th Grade
•
Medium
南一 自然
Used 28+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
足球在草地上滾動的過程中,最不可能受到何種力的作用?
地球引力
磁力
摩擦力
空氣阻力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一輛重1公噸的車子,停在路邊水平的地面上,則車子所受的摩擦力為:
0 kgw
1 kgw
100 kgw
1000 kgw
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪些措施對減少摩擦力是無效的?
接觸面間加潤滑油
以滾動代替滑動
輪胎上的紋路
減少質量
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於摩擦力的敘述,何者正確?
接觸面積愈小則摩擦力愈小
摩擦力大小與接觸面的性質無關
物體開始運動瞬間的摩擦力最大
物體與接觸面之摩擦力愈大則愈易推動
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於摩擦力的敘述,何者錯誤?
與兩物體接觸面積的大小有關
與正向作用力有關
摩擦力方向恆與物體運動方向相反
與接觸面粗糙程度有關
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一物體向東行進,則與地板的摩擦力方向應為:
向東
向西
向南
向北
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在拔河比賽中最重要的作用力為下列何者?
磁力和電力
拉力和摩擦力
重力和空氣阻力
重力和推力
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