在超級市場買菜時,推著購物車的用力方式,和下列哪一個情況相似?
選項: 提起水桶, 推動書桌椅, 背起背包, 用磁鐵吸引鐵釘
國小自然5下1-1

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Education
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1st - 5th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
推動書桌椅
2.
FLASHCARD QUESTION
Front
下列哪一種力屬於超距力?
Options: 用磁鐵將鐵粉吸起來, 把球往上拋, 將竹筷折成兩半, 將雞蛋敲破
Back
用磁鐵將鐵粉吸起來
3.
FLASHCARD QUESTION
Front
物體受力作用時,不會產生什麼變化?選項: 形狀改變, 位置移動, 運動速度改變, 顏色改變
Back
顏色改變
4.
FLASHCARD QUESTION
Front
下列哪一種情形屬於物體受力後的運動狀態改變?
選項: 用腳踩扁鋁罐, 輕輕拉開橡皮筋, 將紙揉成紙團, 打排球
Back
打排球
5.
FLASHCARD QUESTION
Front
下列哪一個是生活中減少摩擦力的例子?
選項: 原子筆桿的前端有一圈圈的螺紋, 老虎鉗內側凹凸的紋路, 鞋底的紋路, 直排輪鞋的滾輪
Back
直排輪鞋的滾輪
6.
FLASHCARD QUESTION
Front
摩擦力會讓我們施力時較費力,但是適度的摩擦力能讓生活更便利,下列哪一項不是增加摩擦力帶來便利的例子?
選項: 上合歡山賞雪時,車子的輪胎要加裝雪鏈, 寶特瓶的瓶蓋設計有刻紋, 在腳踏車的鏈條上油, 鞋底具有深淺紋路
Back
在腳踏車的鏈條上油
7.
FLASHCARD QUESTION
Front
下列四種物品的設計,哪一項是為了減少摩擦力?
選項: 寶特瓶瓶蓋上的刻紋, 鞋底的紋路, 手推車上的滾輪, 工具上的凹凸紋路
Back
手推車上的滾輪
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