
四下1-2力的比較與表示
Quiz
•
Science
•
4th Grade
•
Easy
縣立員林國小陳麗君(資) 縣立員林國小陳麗君(資)
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
威利想套中架上的機器人,他需要往哪個方向施力?
右上方
左上方
正上方
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
羽球被球拍擊中後會改變飛行方向,根據飛行方向的變化我們可以知道
羽球受力的方向
羽球受力的大小
羽球的重量
球拍的尺寸
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於力的敘述,下列選項何者不正確?
用手按壓氣球,氣球愈扁表示下壓的力量愈大
用手拉橡皮筋,橡皮筋變形的程度愈大表示受力愈大
用手推皮球,皮球滾得愈遠表示受力愈大
因為力是看不見的,所以我們無法用符號來表示力的大小或方向
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
方鈞撿起了地上的橡皮擦,此時橡皮擦的受力方向是
向上
向下
向左
向右
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用符號表示受力的情形,下列敘述何者有誤?
箭號【尾部黑點】表示力的作用點,黑點越大,表示施的力越大
【箭頭指向】表示力的方向
【箭號長度】越長,表示施力越大
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列敘述何者正確?
透過球滾動的距離,可以判斷力的方向
從鋁罐變形的程度,可以知道力的大小
從紙條飄動的長度,可以知道力的大小
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