
110_B3T2段考模擬A卷
Quiz
•
Science
•
8th Grade
•
Practice Problem
•
Medium
chungtsen chen
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1. 阿龍到棒球場觀賞棒球比賽,當比賽進行到最緊張的時候,投手將球投出後,打者奮力一揮,「ㄎㄧㄤ」的一聲,球飛出了全壘打牆外,頓時之間,球迷尖叫聲掌聲四起,試問下列哪項聲音的傳播速率最快?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2. 如附圖,在不透明紙板中央刺一針孔,置於蠟燭與紙屏之間,點燃蠟燭做針孔成像的實驗。若紙板上再刺兩個針孔,其他條件均維持不變,則燭火在紙屏上的成像變化,下列何者正確?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3. 在電視上,常看到有人要確定火車是否即將到達,會趴下來聽聽鐵軌的聲音,請問這和用耳朵直接由空氣中聽取火車的聲音互相比較,有何不同?
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4. 阿國在觀摩防空演習時,當炸彈爆炸時,他看到爆炸強烈的光,聽到巨大的爆炸聲響,還有腳底的輕微振動。這三件事,哪件事是最後才感受到的?
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
5. 如附圖,光線經過甲、乙、丙三層介質時發生折射,假設各交界面互相平行,且角度c>a>b,則光線在三介質中的速率大小關係,下列何者正確?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
6. 如附圖,小南在電梯中,向左邊的A 鏡子移動,則此時小南分別在A、B、C三個鏡子所成的像,應該是如何移動的?
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7. 西元1808年,法國物理學家必歐在巴黎測量出聲音在鐵管中的速率。他在長1700公尺的鐵管一端敲了一下,在鐵管另一端可聽到兩次聲響,第一次是由鐵管傳來的,第二次是由空氣傳來的,兩次聲響相隔4.5秒,如果當時空氣中的聲速是340公尺/秒,則鐵管中的聲速為每秒多少公尺?
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