
八下三段複習ch5-1~ch6-4
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
林 炳弘
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關有機酸的敘述,下列何者錯誤?
是一種電解質
醋酸可以直接食用
溶於水呈酸性
分子有-COOH 原子團
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
圖為化合物的簡要分類圖。依據此圖,肥皂分子屬於哪一種物質的分類呢?
甲
乙
丙
丁
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若穿高跟鞋在剛鋪好的柏油路上走路,會留下明顯的凹痕;而穿平底鞋則不易留下凹陷。請問此情形與下列何種因素有關?(甲)人在穿高跟鞋時的重量會比較大;(乙)高跟鞋與地面接觸面積較小;(丙)人在穿高跟鞋時所產生之壓力較大;(丁)與鋪設柏油路的品質有關。
甲乙
乙丙
丙丁
甲丁
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,相同重量的四艘船,甲、乙為空船,丙、丁兩船載滿相同重量的貨物,所受浮力大小順序為何?(密度:海水>淡水)
甲=乙>丙=丁
甲=乙<丙=丁
乙>甲>丁>丙
丁>丙>乙>甲
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有一個未知重量的保溫杯靜置於水平桌面上,在杯內倒入一半的純水與將保溫瓶裝滿時,作用於桌面的壓力比為 2:3,若此保溫杯的容量為 600mL,則保溫杯的重量約為多少?
300gw
400gw
500gw
600gw
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者為有機物?
食鹽
酒精
乾冰
不鏽鋼
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一物體同時受 F1、F2 兩個力的作用如圖所示,結果物體卻維持靜止不動(圖中 F1、F2 的大小與方向是用線段的長度和箭頭方向代表),則由此可推知下列何者?
物體與桌面間必有摩擦力
F1、F2 的合力為零
物體所受的重力與 F1、F2 成三力平衡
物體所受的重力大於 F1、F2 的合力
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