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力矩與靜力平衡

Authored by CHEN HSI CHUAN

Physics

9th Grade

Used 7+ times

力矩與靜力平衡
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A、B兩斜面各對應於甲、乙兩螺絲釘,若要將螺絲釘旋入相同材質的木板內何者較省力?


甲較省力
乙較省力
兩者同樣省力
無法比較

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一輪軸,其輪之半徑與軸之半徑比為4:1,則輪轉1周,軸轉多少周?

4
1/2
1
2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (甲)手握原子筆寫字;(乙)汽水瓶蓋起子之使用;(丙)用竹掃把掃地;(丁)用筷子吃飯;(戊)使用螺絲起子。施力點的位置在支撐點和抗力點之間的槓桿,上列哪些器具是應用了此槓桿?

甲乙
乙戊
甲丙丁
丙丁戊

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

螺絲、螺絲起子、喇叭鎖、方向盤及刀的刃口等5種裝置中,應用斜面原理的有幾種?

2
3
4
5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

附圖為一滑輪組的裝置,不計摩擦力及滑輪組的重量,欲將重物提升1公尺,則施力需將繩子下拉多少公尺?

0.5
1.0
1.5
2.0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

提升東西用的輪軸裝置,輪和軸半徑比為2:1,拉動輪上的繩子使物體上升,那麼在上升中每拉6 m,則物體應上升多少m?

6/
6
3
3/

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

如附圖所示,輪直徑為100公分,軸直徑為40公分,今欲使重800克重的物體上升100公分,須下拉繩長多少公分?

100
150
200
250

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