阿金和小遙分別站立於牆的兩側如圖,若要在牆上開一扇窗使兩人彼此都能看見對方的全身,則所需的最小窗口之位置為下列何者? /

109-1國二自然二段翰林習作練習

Quiz
•
Physics
•
8th Grade
•
Medium
唐碩振 唐碩振
Used 8+ times
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50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
cd
ad
bd
be
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列有關超聲波的敘述,何者錯誤?
人耳聽不見的聲音稱為超聲波
相同介質中,超聲波的波速與一般聲波相同
超聲波可應用在孕婦產檢及清洗物品汙垢
海豚及蝙蝠等動物可以發出及接收超聲波
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
圖為振動一輕繩產生向右傳播的週期波瞬間波形,P點為繩上一點,試問下一瞬間P點的運動方向為何?
向上
向下
靜止
向右
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者為產生聲波的完整條件?
物體急速振動
物體在介質中急速振動
物體作規則的振動
物體作不規則的振動
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖為一道雷射光斜向入射放在桌上的透明壓克力片,根據圖示判斷下列敘述何者正確? /
桌面上的雷射光點會落在 a 區
桌面上的雷射光點會落在 b 區
桌面上的雷射光點會落在 c 區
桌面上的雷射光點會落在 b、c 交界處
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
安裝在汽車車頭燈泡周圍的鏡面,其達成的效果與下列何者相同?
耳鼻喉科醫生檢查時頭戴的凹面鏡
修飾臉容時用的化妝鏡
矯正視力配戴的眼鏡
看細小字體時用的放大鏡
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
甲、乙、丙三圖表示蠟燭發出的光線照射到屏幕上的情形,甲為直接照射,乙為經針孔後照射,丙為經凸透鏡後照射,請問關於屏幕上的成像何者正確?
(甲)倒立虛像 (乙)倒立實像 (丙)比乙暗的倒立實像
(甲)倒立虛像 (乙)倒立實像 (丙)比乙亮的倒立實像
(甲)無法成像 (乙)倒立實像 (丙)比乙暗的倒立實像
(甲)無法成像 (乙)倒立實像 (丙)比乙亮的倒立實像
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