放開手中的橡皮擦,橡皮擦會往下掉落,這是因為哪一種力的作用?
U4 力與運動

Quiz
•
Science
•
5th Grade
•
Medium
王 瀚慶
Used 45+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
地球引力
水力
電力
彈力
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一個現象中,物體受力後,運動狀態會改變?
用手推牆壁
用手折泡棉片
用手推皮球
用手壓皮球
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
小綠在彈簧下方掛了許多個砝碼,拿掉砝碼時,發現彈簧不能恢復原來的長度,這應該是什麼原因造成的?
砝碼數量太少
砝碼重量已經超過彈簧的彈性限度
彈簧重量太輕
彈簧停止受力後,本來就不能恢復原狀
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在彈性限度內,懸掛在彈簧底部的物體重量越重,彈簧會有什麼改變?
彈簧長度越長
彈簧長度越短
彈簧彈性越好
彈簧會斷掉
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一個是利用彈簧受力時長度會改變的原理,所製作出來的物品?
滅火器
夾子
磅秤
身高計
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
進行拔河比賽時,如果兩隊僵持不下,代表什麼意義呢?
繩子受到兩個大小不同、方向相反的力
繩子受到兩個大小相同、方向相同的力
繩子受到兩個大小相同、方向相反的力
繩子受到兩個大小不同、方向相同的力
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
從下列哪一個形況中,可以看出來有施力?
電視播放節目
紅豆湯沸騰了
水結冰了
麵糰被揉捏擠壓
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