
簡單機械
Quiz
•
Physics
•
6th Grade
•
Practice Problem
•
Hard
老師尹靄怡 老師尹靄怡
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9 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些東西應用了滾子?(答案可多於一個。)
剪刀
汽車
螺絲釘上的螺旋紋
滾軸溜冰鞋上的輪子
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些人運用了省力的機械來工作?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
槓桿原理的「重點」是指甚麼?
槓桿轉動的中心
槓桿負荷的位置
槓桿施力的位置
槓桿最重的位置
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些工具運用了槓桿原理?(答案可多於一個。)
麪包夾
彈弓
鉗子
開瓶器
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪個小孩懂得用最省力的方法移開石子?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪種情況下的槓桿不能省力?
力點與支點的距離比重點與支點的距離長
力點與支點的距離比重點與支點的距離短
力點與支點的距離較遠
重點負荷的物品太重
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些關於斜面的描述是正確的?(答案可多於一個。)
斜面是一種減輕物件重量的機械
斜面是一種可以省力的機械。
在斜度較小的斜面移動重物,需要的力較小
斜面是一種簡單機械。
8.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
以下哪些工具不省力但方便工作?
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果要把物件移往高處,以下哪種斜面的斜度最為省力?
斜度越小
斜度適中
斜度與物件平衡
斜度越大
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