
z自然6-4
Quiz
•
English
•
8th Grade
•
Medium

林愛羣 林愛羣
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列敘述何者錯誤?
走在有鋪木板的泥地上,較不易陷入泥地中
釘子的尖端易釘入物體內,是因為釘子的尖端接觸物體的面積較小
在沙灘上看見腳印愈深的,表示留下腳印的人體重愈重
在相同的作用力下,吸管削尖的一端較易穿透飲料包裝
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
有一長方體物體的邊長分別為 5 cm、3 cm、1 cm,物體的重量為 90 gw,當物體放置於桌面時,對桌面造成最小的壓力為多少 gw/cm2?
18
6
3
1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
游泳池之長、寬、深度皆放大 3 倍,當放大前、後各裝滿水時,池底所受液體壓力為原來的多少倍?
3
6
9
27
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
水壓機大小活塞半徑比為 3:1,對小活塞施力 30 kgw,大活塞可舉起多少 kgw?
270 kgw
90 kgw
30 kgw
ㄆ 10 kgw
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在一大氣壓下進行托里切利實驗,若不慎有微量空氣在玻璃管內,當測試地球表面的大氣壓力時,則水銀柱高度會如何?
小於 76 公分
大於 76 公分
等於 76 公分
上下不停移動
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在月球上作托里切利實驗,則玻璃管內水銀柱的高度為多少 cm?
0 cm
76 cm
1033.6 cm
1292 cm
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列為進行托里切利實驗後所得的結論,試問哪一個結論錯誤,而必須重做實驗?
水銀柱與水銀槽的液面高度差即為大氣壓力的大小
水銀柱的粗細不影響水銀柱與水銀槽的液面高度差
水銀柱的上方為真空
水銀柱的傾斜角度將影響水銀柱的垂直高度
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